188809640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{347}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 434972160

約数和(自身を除く): 246162520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 223, 244, 305, 347, 446, 488, 610, 694, 892, 1115, 1220, 1388, 1735, 1784, 2230, 2440, 2776, 3470, 4460, 6940, 8920, 13603, 13880, 21167, 27206, 42334, 54412, 68015, 77381, 84668, 105835, 108824, 136030, 154762, 169336, 211670, 272060, 309524, 386905, 423340, 544120, 619048, 773810, 846680, 1547620, 3095240, 4720241, 9440482, 18880964, 23601205, 37761928, 47202410, 94404820, 188809640]

約数ペア:

[(1, 188809640), (2, 94404820), (4, 47202410), (5, 37761928), (8, 23601205), (10, 18880964), (20, 9440482), (40, 4720241), (61, 3095240), (122, 1547620), (223, 846680), (244, 773810), (305, 619048), (347, 544120), (446, 423340), (488, 386905), (610, 309524), (694, 272060), (892, 211670), (1115, 169336), (1220, 154762), (1388, 136030), (1735, 108824), (1784, 105835), (2230, 84668), (2440, 77381), (2776, 68015), (3470, 54412), (4460, 42334), (6940, 27206), (8920, 21167), (13603, 13880)]