16362880

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 40232880

約数和(自身を除く): 23870000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 296, 320, 370, 592, 640, 691, 740, 1184, 1382, 1480, 2368, 2764, 2960, 3455, 4736, 5528, 5920, 6910, 11056, 11840, 13820, 22112, 23680, 25567, 27640, 44224, 51134, 55280, 88448, 102268, 110560, 127835, 204536, 221120, 255670, 409072, 442240, 511340, 818144, 1022680, 1636288, 2045360, 3272576, 4090720, 8181440, 16362880]

約数ペア:

[(1, 16362880), (2, 8181440), (4, 4090720), (5, 3272576), (8, 2045360), (10, 1636288), (16, 1022680), (20, 818144), (32, 511340), (37, 442240), (40, 409072), (64, 255670), (74, 221120), (80, 204536), (128, 127835), (148, 110560), (160, 102268), (185, 88448), (296, 55280), (320, 51134), (370, 44224), (592, 27640), (640, 25567), (691, 23680), (740, 22112), (1184, 13820), (1382, 11840), (1480, 11056), (2368, 6910), (2764, 5920), (2960, 5528), (3455, 4736)]