8455820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 18748800

約数和(自身を除く): 10292980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 239, 244, 290, 305, 478, 580, 610, 956, 1195, 1220, 1769, 2390, 3538, 4780, 6931, 7076, 8845, 13862, 14579, 17690, 27724, 29158, 34655, 35380, 58316, 69310, 72895, 138620, 145790, 291580, 422791, 845582, 1691164, 2113955, 4227910, 8455820]

約数ペア:

[(1, 8455820), (2, 4227910), (4, 2113955), (5, 1691164), (10, 845582), (20, 422791), (29, 291580), (58, 145790), (61, 138620), (116, 72895), (122, 69310), (145, 58316), (239, 35380), (244, 34655), (290, 29158), (305, 27724), (478, 17690), (580, 14579), (610, 13862), (956, 8845), (1195, 7076), (1220, 6931), (1769, 4780), (2390, 3538)]