642620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 1548288

約数和(自身を除く): 905668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 127, 220, 230, 253, 254, 460, 506, 508, 635, 1012, 1265, 1270, 1397, 2530, 2540, 2794, 2921, 5060, 5588, 5842, 6985, 11684, 13970, 14605, 27940, 29210, 32131, 58420, 64262, 128524, 160655, 321310, 642620]

約数ペア:

[(1, 642620), (2, 321310), (4, 160655), (5, 128524), (10, 64262), (11, 58420), (20, 32131), (22, 29210), (23, 27940), (44, 14605), (46, 13970), (55, 11684), (92, 6985), (110, 5842), (115, 5588), (127, 5060), (220, 2921), (230, 2794), (253, 2540), (254, 2530), (460, 1397), (506, 1270), (508, 1265), (635, 1012)]