68542640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:630

約数の個数: 80

約数和(自身を含む): 170748000

約数和(自身を除く): 102205360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 101, 136, 170, 202, 272, 340, 404, 499, 505, 680, 808, 998, 1010, 1360, 1616, 1717, 1996, 2020, 2495, 3434, 3992, 4040, 4990, 6868, 7984, 8080, 8483, 8585, 9980, 13736, 16966, 17170, 19960, 27472, 33932, 34340, 39920, 42415, 50399, 67864, 68680, 84830, 100798, 135728, 137360, 169660, 201596, 251995, 339320, 403192, 503990, 678640, 806384, 856783, 1007980, 1713566, 2015960, 3427132, 4031920, 4283915, 6854264, 8567830, 13708528, 17135660, 34271320, 68542640]

約数ペア:

[(1, 68542640), (2, 34271320), (4, 17135660), (5, 13708528), (8, 8567830), (10, 6854264), (16, 4283915), (17, 4031920), (20, 3427132), (34, 2015960), (40, 1713566), (68, 1007980), (80, 856783), (85, 806384), (101, 678640), (136, 503990), (170, 403192), (202, 339320), (272, 251995), (340, 201596), (404, 169660), (499, 137360), (505, 135728), (680, 100798), (808, 84830), (998, 68680), (1010, 67864), (1360, 50399), (1616, 42415), (1717, 39920), (1996, 34340), (2020, 33932), (2495, 27472), (3434, 19960), (3992, 17170), (4040, 16966), (4990, 13736), (6868, 9980), (7984, 8585), (8080, 8483)]