9516980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 22014720

約数和(自身を除く): 12497740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 239, 362, 478, 724, 905, 956, 1195, 1810, 1991, 2390, 2629, 3620, 3982, 4780, 5258, 7964, 9955, 10516, 13145, 19910, 26290, 39820, 43259, 52580, 86518, 173036, 216295, 432590, 475849, 865180, 951698, 1903396, 2379245, 4758490, 9516980]

約数ペア:

[(1, 9516980), (2, 4758490), (4, 2379245), (5, 1903396), (10, 951698), (11, 865180), (20, 475849), (22, 432590), (44, 216295), (55, 173036), (110, 86518), (181, 52580), (220, 43259), (239, 39820), (362, 26290), (478, 19910), (724, 13145), (905, 10516), (956, 9955), (1195, 7964), (1810, 5258), (1991, 4780), (2390, 3982), (2629, 3620)]