90333980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21611}}^1$

素因数の和:21650

約数の個数: 48

約数和(自身を含む): 217848960

約数和(自身を除く): 127514980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 21611, 43222, 86444, 108055, 216110, 237721, 410609, 432220, 475442, 821218, 950884, 1188605, 1642436, 2053045, 2377210, 4106090, 4516699, 4754420, 8212180, 9033398, 18066796, 22583495, 45166990, 90333980]

約数ペア:

[(1, 90333980), (2, 45166990), (4, 22583495), (5, 18066796), (10, 9033398), (11, 8212180), (19, 4754420), (20, 4516699), (22, 4106090), (38, 2377210), (44, 2053045), (55, 1642436), (76, 1188605), (95, 950884), (110, 821218), (190, 475442), (209, 432220), (220, 410609), (380, 237721), (418, 216110), (836, 108055), (1045, 86444), (2090, 43222), (4180, 21611)]