1320235640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:585

約数の個数: 128

約数和(自身を含む): 3251923200

約数和(自身を除く): 1931687560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 101, 136, 170, 188, 202, 235, 340, 376, 404, 409, 470, 505, 680, 799, 808, 818, 940, 1010, 1598, 1636, 1717, 1880, 2020, 2045, 3196, 3272, 3434, 3995, 4040, 4090, 4747, 6392, 6868, 6953, 7990, 8180, 8585, 9494, 13736, 13906, 15980, 16360, 17170, 18988, 19223, 23735, 27812, 31960, 34340, 34765, 37976, 38446, 41309, 47470, 55624, 68680, 69530, 76892, 80699, 82618, 94940, 96115, 139060, 153784, 161398, 165236, 189880, 192230, 206545, 278120, 322796, 326791, 330472, 384460, 403495, 413090, 645592, 653582, 702253, 768920, 806990, 826180, 1307164, 1404506, 1613980, 1633955, 1652360, 1941523, 2614328, 2809012, 3227960, 3267910, 3511265, 3883046, 5618024, 6535820, 7022530, 7766092, 9707615, 13071640, 14045060, 15532184, 19415230, 28090120, 33005891, 38830460, 66011782, 77660920, 132023564, 165029455, 264047128, 330058910, 660117820, 1320235640]

約数ペア:

[(1, 1320235640), (2, 660117820), (4, 330058910), (5, 264047128), (8, 165029455), (10, 132023564), (17, 77660920), (20, 66011782), (34, 38830460), (40, 33005891), (47, 28090120), (68, 19415230), (85, 15532184), (94, 14045060), (101, 13071640), (136, 9707615), (170, 7766092), (188, 7022530), (202, 6535820), (235, 5618024), (340, 3883046), (376, 3511265), (404, 3267910), (409, 3227960), (470, 2809012), (505, 2614328), (680, 1941523), (799, 1652360), (808, 1633955), (818, 1613980), (940, 1404506), (1010, 1307164), (1598, 826180), (1636, 806990), (1717, 768920), (1880, 702253), (2020, 653582), (2045, 645592), (3196, 413090), (3272, 403495), (3434, 384460), (3995, 330472), (4040, 326791), (4090, 322796), (4747, 278120), (6392, 206545), (6868, 192230), (6953, 189880), (7990, 165236), (8180, 161398), (8585, 153784), (9494, 139060), (13736, 96115), (13906, 94940), (15980, 82618), (16360, 80699), (17170, 76892), (18988, 69530), (19223, 68680), (23735, 55624), (27812, 47470), (31960, 41309), (34340, 38446), (34765, 37976)]