20415757680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{251}}^1\times {\mathrm{653}}^1$

素因数の和:1096

約数の個数: 240

約数和(自身を含む): 69339999456

約数和(自身を除く): 48924241776

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 173, 180, 240, 251, 346, 360, 502, 519, 653, 692, 720, 753, 865, 1004, 1038, 1255, 1306, 1384, 1506, 1557, 1730, 1959, 2008, 2076, 2259, 2510, 2595, 2612, 2768, 3012, 3114, 3265, 3460, 3765, 3918, 4016, 4152, 4518, 5020, 5190, 5224, 5877, 6024, 6228, 6530, 6920, 7530, 7785, 7836, 8304, 9036, 9795, 10040, 10380, 10448, 11295, 11754, 12048, 12456, 13060, 13840, 15060, 15570, 15672, 18072, 19590, 20080, 20760, 22590, 23508, 24912, 26120, 29385, 30120, 31140, 31344, 36144, 39180, 41520, 43423, 45180, 47016, 52240, 58770, 60240, 62280, 78360, 86846, 90360, 94032, 112969, 117540, 124560, 130269, 156720, 163903, 173692, 180720, 217115, 225938, 235080, 260538, 327806, 338907, 347384, 390807, 434230, 451876, 470160, 491709, 521076, 564845, 651345, 655612, 677814, 694768, 781614, 819515, 868460, 903752, 983418, 1016721, 1042152, 1129690, 1302690, 1311224, 1355628, 1475127, 1563228, 1639030, 1694535, 1736920, 1807504, 1954035, 1966836, 2033442, 2084304, 2259380, 2458545, 2605380, 2622448, 2711256, 2950254, 3126456, 3278060, 3389070, 3473840, 3908070, 3933672, 4066884, 4518760, 4917090, 5083605, 5210760, 5422512, 5900508, 6252912, 6556120, 6778140, 7375635, 7816140, 7867344, 8133768, 9037520, 9834180, 10167210, 10421520, 11801016, 13112240, 13556280, 14751270, 15632280, 16267536, 19668360, 20334420, 23602032, 27112560, 28355219, 29502540, 31264560, 39336720, 40668840, 56710438, 59005080, 81337680, 85065657, 113420876, 118010160, 141776095, 170131314, 226841752, 255196971, 283552190, 340262628, 425328285, 453683504, 510393942, 567104380, 680525256, 850656570, 1020787884, 1134208760, 1275984855, 1361050512, 1701313140, 2041575768, 2268417520, 2551969710, 3402626280, 4083151536, 5103939420, 6805252560, 10207878840, 20415757680]

約数ペア:

[(1, 20415757680), (2, 10207878840), (3, 6805252560), (4, 5103939420), (5, 4083151536), (6, 3402626280), (8, 2551969710), (9, 2268417520), (10, 2041575768), (12, 1701313140), (15, 1361050512), (16, 1275984855), (18, 1134208760), (20, 1020787884), (24, 850656570), (30, 680525256), (36, 567104380), (40, 510393942), (45, 453683504), (48, 425328285), (60, 340262628), (72, 283552190), (80, 255196971), (90, 226841752), (120, 170131314), (144, 141776095), (173, 118010160), (180, 113420876), (240, 85065657), (251, 81337680), (346, 59005080), (360, 56710438), (502, 40668840), (519, 39336720), (653, 31264560), (692, 29502540), (720, 28355219), (753, 27112560), (865, 23602032), (1004, 20334420), (1038, 19668360), (1255, 16267536), (1306, 15632280), (1384, 14751270), (1506, 13556280), (1557, 13112240), (1730, 11801016), (1959, 10421520), (2008, 10167210), (2076, 9834180), (2259, 9037520), (2510, 8133768), (2595, 7867344), (2612, 7816140), (2768, 7375635), (3012, 6778140), (3114, 6556120), (3265, 6252912), (3460, 5900508), (3765, 5422512), (3918, 5210760), (4016, 5083605), (4152, 4917090), (4518, 4518760), (5020, 4066884), (5190, 3933672), (5224, 3908070), (5877, 3473840), (6024, 3389070), (6228, 3278060), (6530, 3126456), (6920, 2950254), (7530, 2711256), (7785, 2622448), (7836, 2605380), (8304, 2458545), (9036, 2259380), (9795, 2084304), (10040, 2033442), (10380, 1966836), (10448, 1954035), (11295, 1807504), (11754, 1736920), (12048, 1694535), (12456, 1639030), (13060, 1563228), (13840, 1475127), (15060, 1355628), (15570, 1311224), (15672, 1302690), (18072, 1129690), (19590, 1042152), (20080, 1016721), (20760, 983418), (22590, 903752), (23508, 868460), (24912, 819515), (26120, 781614), (29385, 694768), (30120, 677814), (31140, 655612), (31344, 651345), (36144, 564845), (39180, 521076), (41520, 491709), (43423, 470160), (45180, 451876), (47016, 434230), (52240, 390807), (58770, 347384), (60240, 338907), (62280, 327806), (78360, 260538), (86846, 235080), (90360, 225938), (94032, 217115), (112969, 180720), (117540, 173692), (124560, 163903), (130269, 156720)]