261567779990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3499}}^1\times {\mathrm{61781}}^1$

素因数の和:65309

約数の個数: 48

約数和(自身を含む): 517671378000

約数和(自身を除く): 256103598010

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 3499, 6998, 17495, 34990, 38489, 61781, 76978, 123562, 192445, 308905, 384890, 423379, 617810, 679591, 846758, 1359182, 2116895, 3397955, 4233790, 6795910, 7475501, 14951002, 37377505, 74755010, 216171719, 432343438, 1080858595, 2161717190, 2377888909, 4755777818, 11889444545, 23778889090, 26156777999, 52313555998, 130783889995, 261567779990]

約数ペア:

[(1, 261567779990), (2, 130783889995), (5, 52313555998), (10, 26156777999), (11, 23778889090), (22, 11889444545), (55, 4755777818), (110, 2377888909), (121, 2161717190), (242, 1080858595), (605, 432343438), (1210, 216171719), (3499, 74755010), (6998, 37377505), (17495, 14951002), (34990, 7475501), (38489, 6795910), (61781, 4233790), (76978, 3397955), (123562, 2116895), (192445, 1359182), (308905, 846758), (384890, 679591), (423379, 617810)]