642005040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{86291}}^1$

素因数の和:86338

約数の個数: 80

約数和(自身を含む): 2054439936

約数和(自身を除く): 1412434896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 86291, 172582, 258873, 345164, 431455, 517746, 690328, 862910, 1035492, 1294365, 1380656, 1725820, 2070984, 2588730, 2675021, 3451640, 4141968, 5177460, 5350042, 6903280, 8025063, 10354920, 10700084, 13375105, 16050126, 20709840, 21400168, 26750210, 32100252, 40125315, 42800336, 53500420, 64200504, 80250630, 107000840, 128401008, 160501260, 214001680, 321002520, 642005040]

約数ペア:

[(1, 642005040), (2, 321002520), (3, 214001680), (4, 160501260), (5, 128401008), (6, 107000840), (8, 80250630), (10, 64200504), (12, 53500420), (15, 42800336), (16, 40125315), (20, 32100252), (24, 26750210), (30, 21400168), (31, 20709840), (40, 16050126), (48, 13375105), (60, 10700084), (62, 10354920), (80, 8025063), (93, 6903280), (120, 5350042), (124, 5177460), (155, 4141968), (186, 3451640), (240, 2675021), (248, 2588730), (310, 2070984), (372, 1725820), (465, 1380656), (496, 1294365), (620, 1035492), (744, 862910), (930, 690328), (1240, 517746), (1488, 431455), (1860, 345164), (2480, 258873), (3720, 172582), (7440, 86291)]