31498720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1627}}^1$

素因数の和:1664

約数の個数: 72

約数和(自身を含む): 81846072

約数和(自身を除く): 50347352

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1627, 1760, 1936, 2420, 3254, 3872, 4840, 6508, 8135, 9680, 13016, 16270, 17897, 19360, 26032, 32540, 35794, 52064, 65080, 71588, 89485, 130160, 143176, 178970, 196867, 260320, 286352, 357940, 393734, 572704, 715880, 787468, 984335, 1431760, 1574936, 1968670, 2863520, 3149872, 3937340, 6299744, 7874680, 15749360, 31498720]

約数ペア:

[(1, 31498720), (2, 15749360), (4, 7874680), (5, 6299744), (8, 3937340), (10, 3149872), (11, 2863520), (16, 1968670), (20, 1574936), (22, 1431760), (32, 984335), (40, 787468), (44, 715880), (55, 572704), (80, 393734), (88, 357940), (110, 286352), (121, 260320), (160, 196867), (176, 178970), (220, 143176), (242, 130160), (352, 89485), (440, 71588), (484, 65080), (605, 52064), (880, 35794), (968, 32540), (1210, 26032), (1627, 19360), (1760, 17897), (1936, 16270), (2420, 13016), (3254, 9680), (3872, 8135), (4840, 6508)]