15977840

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:210

約数の個数: 80

約数和(自身を含む): 39372480

約数和(自身を除く): 23394640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 71, 80, 97, 116, 142, 145, 194, 232, 284, 290, 355, 388, 464, 485, 568, 580, 710, 776, 970, 1136, 1160, 1420, 1552, 1940, 2059, 2320, 2813, 2840, 3880, 4118, 5626, 5680, 6887, 7760, 8236, 10295, 11252, 13774, 14065, 16472, 20590, 22504, 27548, 28130, 32944, 34435, 41180, 45008, 55096, 56260, 68870, 82360, 110192, 112520, 137740, 164720, 199723, 225040, 275480, 399446, 550960, 798892, 998615, 1597784, 1997230, 3195568, 3994460, 7988920, 15977840]

約数ペア:

[(1, 15977840), (2, 7988920), (4, 3994460), (5, 3195568), (8, 1997230), (10, 1597784), (16, 998615), (20, 798892), (29, 550960), (40, 399446), (58, 275480), (71, 225040), (80, 199723), (97, 164720), (116, 137740), (142, 112520), (145, 110192), (194, 82360), (232, 68870), (284, 56260), (290, 55096), (355, 45008), (388, 41180), (464, 34435), (485, 32944), (568, 28130), (580, 27548), (710, 22504), (776, 20590), (970, 16472), (1136, 14065), (1160, 13774), (1420, 11252), (1552, 10295), (1940, 8236), (2059, 7760), (2320, 6887), (2813, 5680), (2840, 5626), (3880, 4118)]