28379960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1283}}^1$

素因数の和:1380

約数の個数: 64

約数和(自身を含む): 73958400

約数和(自身を除く): 45578440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1283, 1580, 2212, 2566, 2765, 3160, 4424, 5132, 5530, 6415, 8981, 10264, 11060, 12830, 17962, 22120, 25660, 35924, 44905, 51320, 71848, 89810, 101357, 179620, 202714, 359240, 405428, 506785, 709499, 810856, 1013570, 1418998, 2027140, 2837996, 3547495, 4054280, 5675992, 7094990, 14189980, 28379960]

約数ペア:

[(1, 28379960), (2, 14189980), (4, 7094990), (5, 5675992), (7, 4054280), (8, 3547495), (10, 2837996), (14, 2027140), (20, 1418998), (28, 1013570), (35, 810856), (40, 709499), (56, 506785), (70, 405428), (79, 359240), (140, 202714), (158, 179620), (280, 101357), (316, 89810), (395, 71848), (553, 51320), (632, 44905), (790, 35924), (1106, 25660), (1283, 22120), (1580, 17962), (2212, 12830), (2566, 11060), (2765, 10264), (3160, 8981), (4424, 6415), (5132, 5530)]