20184728025

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{9421}}^1$

素因数の和:9512

約数の個数: 144

約数和(自身を含む): 43153363008

約数和(自身を除く): 22968634983

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 49, 53, 55, 75, 77, 105, 147, 159, 165, 175, 231, 245, 265, 275, 371, 385, 525, 539, 583, 735, 795, 825, 1113, 1155, 1225, 1325, 1617, 1749, 1855, 1925, 2597, 2695, 2915, 3675, 3975, 4081, 5565, 5775, 7791, 8085, 8745, 9275, 9421, 12243, 12985, 13475, 14575, 20405, 27825, 28263, 28567, 38955, 40425, 43725, 47105, 61215, 64925, 65947, 85701, 102025, 103631, 141315, 142835, 194775, 197841, 235525, 306075, 310893, 329735, 428505, 461629, 499313, 518155, 706575, 714175, 725417, 989205, 1384887, 1497939, 1554465, 1648675, 2142525, 2176251, 2308145, 2496565, 2590775, 3495191, 3627085, 4946025, 5077919, 5492443, 6924435, 7489695, 7772325, 10485573, 10881255, 11540725, 12482825, 15233757, 16477329, 17475955, 18135425, 24466337, 25389595, 27462215, 34622175, 37448475, 38447101, 52427865, 54406275, 73399011, 76168785, 82386645, 87379775, 115341303, 122331685, 126947975, 137311075, 192235505, 262139325, 269129707, 366995055, 380843925, 411933225, 576706515, 611658425, 807389121, 961177525, 1345648535, 1834975275, 2883532575, 4036945605, 6728242675, 20184728025]

約数ペア:

[(1, 20184728025), (3, 6728242675), (5, 4036945605), (7, 2883532575), (11, 1834975275), (15, 1345648535), (21, 961177525), (25, 807389121), (33, 611658425), (35, 576706515), (49, 411933225), (53, 380843925), (55, 366995055), (75, 269129707), (77, 262139325), (105, 192235505), (147, 137311075), (159, 126947975), (165, 122331685), (175, 115341303), (231, 87379775), (245, 82386645), (265, 76168785), (275, 73399011), (371, 54406275), (385, 52427865), (525, 38447101), (539, 37448475), (583, 34622175), (735, 27462215), (795, 25389595), (825, 24466337), (1113, 18135425), (1155, 17475955), (1225, 16477329), (1325, 15233757), (1617, 12482825), (1749, 11540725), (1855, 10881255), (1925, 10485573), (2597, 7772325), (2695, 7489695), (2915, 6924435), (3675, 5492443), (3975, 5077919), (4081, 4946025), (5565, 3627085), (5775, 3495191), (7791, 2590775), (8085, 2496565), (8745, 2308145), (9275, 2176251), (9421, 2142525), (12243, 1648675), (12985, 1554465), (13475, 1497939), (14575, 1384887), (20405, 989205), (27825, 725417), (28263, 714175), (28567, 706575), (38955, 518155), (40425, 499313), (43725, 461629), (47105, 428505), (61215, 329735), (64925, 310893), (65947, 306075), (85701, 235525), (102025, 197841), (103631, 194775), (141315, 142835)]