190191920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1283}}^1$

素因数の和:1422

約数の個数: 80

約数和(自身を含む): 472871520

約数和(自身を除く): 282679600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 109, 136, 170, 218, 272, 340, 436, 545, 680, 872, 1090, 1283, 1360, 1744, 1853, 2180, 2566, 3706, 4360, 5132, 6415, 7412, 8720, 9265, 10264, 12830, 14824, 18530, 20528, 21811, 25660, 29648, 37060, 43622, 51320, 74120, 87244, 102640, 109055, 139847, 148240, 174488, 218110, 279694, 348976, 436220, 559388, 699235, 872440, 1118776, 1398470, 1744880, 2237552, 2377399, 2796940, 4754798, 5593880, 9509596, 11187760, 11886995, 19019192, 23773990, 38038384, 47547980, 95095960, 190191920]

約数ペア:

[(1, 190191920), (2, 95095960), (4, 47547980), (5, 38038384), (8, 23773990), (10, 19019192), (16, 11886995), (17, 11187760), (20, 9509596), (34, 5593880), (40, 4754798), (68, 2796940), (80, 2377399), (85, 2237552), (109, 1744880), (136, 1398470), (170, 1118776), (218, 872440), (272, 699235), (340, 559388), (436, 436220), (545, 348976), (680, 279694), (872, 218110), (1090, 174488), (1283, 148240), (1360, 139847), (1744, 109055), (1853, 102640), (2180, 87244), (2566, 74120), (3706, 51320), (4360, 43622), (5132, 37060), (6415, 29648), (7412, 25660), (8720, 21811), (9265, 20528), (10264, 18530), (12830, 14824)]