660507640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{66853}}^1$

素因数の和:66896

約数の個数: 64

約数和(自身を含む): 1684720800

約数和(自身を除く): 1024213160

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 66853, 133706, 267412, 334265, 534824, 668530, 869089, 1270207, 1337060, 1738178, 2540414, 2674120, 3476356, 4345445, 5080828, 6351035, 6952712, 8690890, 10161656, 12702070, 16512691, 17381780, 25404140, 33025382, 34763560, 50808280, 66050764, 82563455, 132101528, 165126910, 330253820, 660507640]

約数ペア:

[(1, 660507640), (2, 330253820), (4, 165126910), (5, 132101528), (8, 82563455), (10, 66050764), (13, 50808280), (19, 34763560), (20, 33025382), (26, 25404140), (38, 17381780), (40, 16512691), (52, 12702070), (65, 10161656), (76, 8690890), (95, 6952712), (104, 6351035), (130, 5080828), (152, 4345445), (190, 3476356), (247, 2674120), (260, 2540414), (380, 1738178), (494, 1337060), (520, 1270207), (760, 869089), (988, 668530), (1235, 534824), (1976, 334265), (2470, 267412), (4940, 133706), (9880, 66853)]