28649920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:198

約数の個数: 112

約数和(自身を含む): 75273408

約数和(自身を除く): 46623488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 71, 80, 97, 104, 130, 142, 160, 194, 208, 260, 284, 320, 355, 388, 416, 485, 520, 568, 710, 776, 832, 923, 970, 1040, 1136, 1261, 1420, 1552, 1846, 1940, 2080, 2272, 2522, 2840, 3104, 3692, 3880, 4160, 4544, 4615, 5044, 5680, 6208, 6305, 6887, 7384, 7760, 9230, 10088, 11360, 12610, 13774, 14768, 15520, 18460, 20176, 22720, 25220, 27548, 29536, 31040, 34435, 36920, 40352, 50440, 55096, 59072, 68870, 73840, 80704, 89531, 100880, 110192, 137740, 147680, 179062, 201760, 220384, 275480, 295360, 358124, 403520, 440768, 447655, 550960, 716248, 895310, 1101920, 1432496, 1790620, 2203840, 2864992, 3581240, 5729984, 7162480, 14324960, 28649920]

約数ペア:

[(1, 28649920), (2, 14324960), (4, 7162480), (5, 5729984), (8, 3581240), (10, 2864992), (13, 2203840), (16, 1790620), (20, 1432496), (26, 1101920), (32, 895310), (40, 716248), (52, 550960), (64, 447655), (65, 440768), (71, 403520), (80, 358124), (97, 295360), (104, 275480), (130, 220384), (142, 201760), (160, 179062), (194, 147680), (208, 137740), (260, 110192), (284, 100880), (320, 89531), (355, 80704), (388, 73840), (416, 68870), (485, 59072), (520, 55096), (568, 50440), (710, 40352), (776, 36920), (832, 34435), (923, 31040), (970, 29536), (1040, 27548), (1136, 25220), (1261, 22720), (1420, 20176), (1552, 18460), (1846, 15520), (1940, 14768), (2080, 13774), (2272, 12610), (2522, 11360), (2840, 10088), (3104, 9230), (3692, 7760), (3880, 7384), (4160, 6887), (4544, 6305), (4615, 6208), (5044, 5680)]