18366280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 25179320

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 71, 116, 142, 145, 223, 232, 284, 290, 355, 446, 568, 580, 710, 892, 1115, 1160, 1420, 1784, 2059, 2230, 2840, 4118, 4460, 6467, 8236, 8920, 10295, 12934, 15833, 16472, 20590, 25868, 31666, 32335, 41180, 51736, 63332, 64670, 79165, 82360, 126664, 129340, 158330, 258680, 316660, 459157, 633320, 918314, 1836628, 2295785, 3673256, 4591570, 9183140, 18366280]

約数ペア:

[(1, 18366280), (2, 9183140), (4, 4591570), (5, 3673256), (8, 2295785), (10, 1836628), (20, 918314), (29, 633320), (40, 459157), (58, 316660), (71, 258680), (116, 158330), (142, 129340), (145, 126664), (223, 82360), (232, 79165), (284, 64670), (290, 63332), (355, 51736), (446, 41180), (568, 32335), (580, 31666), (710, 25868), (892, 20590), (1115, 16472), (1160, 15833), (1420, 12934), (1784, 10295), (2059, 8920), (2230, 8236), (2840, 6467), (4118, 4460)]