12981742280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1\times {\mathrm{1301}}^1$

素因数の和:1975

約数の個数: 128

約数和(自身を含む): 32547916800

約数和(自身を除く): 19566174520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 619, 620, 806, 1238, 1240, 1301, 1612, 2015, 2476, 2602, 3095, 3224, 4030, 4952, 5204, 6190, 6505, 8047, 8060, 10408, 12380, 13010, 16094, 16120, 16913, 19189, 24760, 26020, 32188, 33826, 38378, 40235, 40331, 52040, 64376, 67652, 76756, 80470, 80662, 84565, 95945, 135304, 153512, 160940, 161324, 169130, 191890, 201655, 249457, 321880, 322648, 338260, 383780, 403310, 498914, 524303, 676520, 767560, 805319, 806620, 997828, 1048606, 1247285, 1610638, 1613240, 1995656, 2097212, 2494570, 2621515, 3221276, 4026595, 4194424, 4989140, 5243030, 6442552, 8053190, 9978280, 10469147, 10486060, 16106380, 20938294, 20972120, 24964889, 32212760, 41876588, 49929778, 52345735, 83753176, 99859556, 104691470, 124824445, 199719112, 209382940, 249648890, 324543557, 418765880, 499297780, 649087114, 998595560, 1298174228, 1622717785, 2596348456, 3245435570, 6490871140, 12981742280]

約数ペア:

[(1, 12981742280), (2, 6490871140), (4, 3245435570), (5, 2596348456), (8, 1622717785), (10, 1298174228), (13, 998595560), (20, 649087114), (26, 499297780), (31, 418765880), (40, 324543557), (52, 249648890), (62, 209382940), (65, 199719112), (104, 124824445), (124, 104691470), (130, 99859556), (155, 83753176), (248, 52345735), (260, 49929778), (310, 41876588), (403, 32212760), (520, 24964889), (619, 20972120), (620, 20938294), (806, 16106380), (1238, 10486060), (1240, 10469147), (1301, 9978280), (1612, 8053190), (2015, 6442552), (2476, 5243030), (2602, 4989140), (3095, 4194424), (3224, 4026595), (4030, 3221276), (4952, 2621515), (5204, 2494570), (6190, 2097212), (6505, 1995656), (8047, 1613240), (8060, 1610638), (10408, 1247285), (12380, 1048606), (13010, 997828), (16094, 806620), (16120, 805319), (16913, 767560), (19189, 676520), (24760, 524303), (26020, 498914), (32188, 403310), (33826, 383780), (38378, 338260), (40235, 322648), (40331, 321880), (52040, 249457), (64376, 201655), (67652, 191890), (76756, 169130), (80470, 161324), (80662, 160940), (84565, 153512), (95945, 135304)]