28943860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 71850240

約数和(自身を除く): 42906380

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 71, 85, 109, 110, 142, 170, 187, 218, 220, 284, 340, 355, 374, 436, 545, 710, 748, 781, 935, 1090, 1199, 1207, 1420, 1562, 1853, 1870, 2180, 2398, 2414, 3124, 3706, 3740, 3905, 4796, 4828, 5995, 6035, 7412, 7739, 7810, 9265, 11990, 12070, 13277, 15478, 15620, 18530, 20383, 23980, 24140, 26554, 30956, 37060, 38695, 40766, 53108, 66385, 77390, 81532, 85129, 101915, 131563, 132770, 154780, 170258, 203830, 263126, 265540, 340516, 407660, 425645, 526252, 657815, 851290, 1315630, 1447193, 1702580, 2631260, 2894386, 5788772, 7235965, 14471930, 28943860]

約数ペア:

[(1, 28943860), (2, 14471930), (4, 7235965), (5, 5788772), (10, 2894386), (11, 2631260), (17, 1702580), (20, 1447193), (22, 1315630), (34, 851290), (44, 657815), (55, 526252), (68, 425645), (71, 407660), (85, 340516), (109, 265540), (110, 263126), (142, 203830), (170, 170258), (187, 154780), (218, 132770), (220, 131563), (284, 101915), (340, 85129), (355, 81532), (374, 77390), (436, 66385), (545, 53108), (710, 40766), (748, 38695), (781, 37060), (935, 30956), (1090, 26554), (1199, 24140), (1207, 23980), (1420, 20383), (1562, 18530), (1853, 15620), (1870, 15478), (2180, 13277), (2398, 12070), (2414, 11990), (3124, 9265), (3706, 7810), (3740, 7739), (3905, 7412), (4796, 6035), (4828, 5995)]