31404560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:432

約数の個数: 80

約数和(自身を含む): 80566272

約数和(自身を除く): 49161712

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 127, 176, 220, 254, 281, 440, 508, 562, 635, 880, 1016, 1124, 1270, 1397, 1405, 2032, 2248, 2540, 2794, 2810, 3091, 4496, 5080, 5588, 5620, 6182, 6985, 10160, 11176, 11240, 12364, 13970, 15455, 22352, 22480, 24728, 27940, 30910, 35687, 49456, 55880, 61820, 71374, 111760, 123640, 142748, 178435, 247280, 285496, 356870, 392557, 570992, 713740, 785114, 1427480, 1570228, 1962785, 2854960, 3140456, 3925570, 6280912, 7851140, 15702280, 31404560]

約数ペア:

[(1, 31404560), (2, 15702280), (4, 7851140), (5, 6280912), (8, 3925570), (10, 3140456), (11, 2854960), (16, 1962785), (20, 1570228), (22, 1427480), (40, 785114), (44, 713740), (55, 570992), (80, 392557), (88, 356870), (110, 285496), (127, 247280), (176, 178435), (220, 142748), (254, 123640), (281, 111760), (440, 71374), (508, 61820), (562, 55880), (635, 49456), (880, 35687), (1016, 30910), (1124, 27940), (1270, 24728), (1397, 22480), (1405, 22352), (2032, 15455), (2248, 13970), (2540, 12364), (2794, 11240), (2810, 11176), (3091, 10160), (4496, 6985), (5080, 6182), (5588, 5620)]