28351240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 68214960

約数和(自身を除く): 39863720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 173, 241, 340, 346, 482, 680, 692, 865, 964, 1205, 1384, 1730, 1928, 2410, 2941, 3460, 4097, 4820, 5882, 6920, 8194, 9640, 11764, 14705, 16388, 20485, 23528, 29410, 32776, 40970, 41693, 58820, 81940, 83386, 117640, 163880, 166772, 208465, 333544, 416930, 708781, 833860, 1417562, 1667720, 2835124, 3543905, 5670248, 7087810, 14175620, 28351240]

約数ペア:

[(1, 28351240), (2, 14175620), (4, 7087810), (5, 5670248), (8, 3543905), (10, 2835124), (17, 1667720), (20, 1417562), (34, 833860), (40, 708781), (68, 416930), (85, 333544), (136, 208465), (170, 166772), (173, 163880), (241, 117640), (340, 83386), (346, 81940), (482, 58820), (680, 41693), (692, 40970), (865, 32776), (964, 29410), (1205, 23528), (1384, 20485), (1730, 16388), (1928, 14705), (2410, 11764), (2941, 9640), (3460, 8194), (4097, 6920), (4820, 5882)]