123782680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{677}}^1$

素因数の和:1348

約数の個数: 64

約数和(自身を含む): 319256640

約数和(自身を除く): 195473960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 653, 677, 1306, 1354, 2612, 2708, 3265, 3385, 4571, 4739, 5224, 5416, 6530, 6770, 9142, 9478, 13060, 13540, 18284, 18956, 22855, 23695, 26120, 27080, 36568, 37912, 45710, 47390, 91420, 94780, 182840, 189560, 442081, 884162, 1768324, 2210405, 3094567, 3536648, 4420810, 6189134, 8841620, 12378268, 15472835, 17683240, 24756536, 30945670, 61891340, 123782680]

約数ペア:

[(1, 123782680), (2, 61891340), (4, 30945670), (5, 24756536), (7, 17683240), (8, 15472835), (10, 12378268), (14, 8841620), (20, 6189134), (28, 4420810), (35, 3536648), (40, 3094567), (56, 2210405), (70, 1768324), (140, 884162), (280, 442081), (653, 189560), (677, 182840), (1306, 94780), (1354, 91420), (2612, 47390), (2708, 45710), (3265, 37912), (3385, 36568), (4571, 27080), (4739, 26120), (5224, 23695), (5416, 22855), (6530, 18956), (6770, 18284), (9142, 13540), (9478, 13060)]