268401440

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{977}}^1$

素因数の和:1110

約数の個数: 96

約数和(自身を含む): 678739824

約数和(自身を除く): 410338384

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 101, 136, 160, 170, 202, 272, 340, 404, 505, 544, 680, 808, 977, 1010, 1360, 1616, 1717, 1954, 2020, 2720, 3232, 3434, 3908, 4040, 4885, 6868, 7816, 8080, 8585, 9770, 13736, 15632, 16160, 16609, 17170, 19540, 27472, 31264, 33218, 34340, 39080, 54944, 66436, 68680, 78160, 83045, 98677, 132872, 137360, 156320, 166090, 197354, 265744, 274720, 332180, 394708, 493385, 531488, 664360, 789416, 986770, 1328720, 1578832, 1677509, 1973540, 2657440, 3157664, 3355018, 3947080, 6710036, 7894160, 8387545, 13420072, 15788320, 16775090, 26840144, 33550180, 53680288, 67100360, 134200720, 268401440]

約数ペア:

[(1, 268401440), (2, 134200720), (4, 67100360), (5, 53680288), (8, 33550180), (10, 26840144), (16, 16775090), (17, 15788320), (20, 13420072), (32, 8387545), (34, 7894160), (40, 6710036), (68, 3947080), (80, 3355018), (85, 3157664), (101, 2657440), (136, 1973540), (160, 1677509), (170, 1578832), (202, 1328720), (272, 986770), (340, 789416), (404, 664360), (505, 531488), (544, 493385), (680, 394708), (808, 332180), (977, 274720), (1010, 265744), (1360, 197354), (1616, 166090), (1717, 156320), (1954, 137360), (2020, 132872), (2720, 98677), (3232, 83045), (3434, 78160), (3908, 68680), (4040, 66436), (4885, 54944), (6868, 39080), (7816, 34340), (8080, 33218), (8585, 31264), (9770, 27472), (13736, 19540), (15632, 17170), (16160, 16609)]