291276220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1\times {\mathrm{881}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 624710016

約数和(自身を除く): 333433796

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 271, 305, 542, 610, 881, 1084, 1220, 1355, 1762, 2710, 3524, 4405, 5420, 8810, 16531, 17620, 33062, 53741, 66124, 82655, 107482, 165310, 214964, 238751, 268705, 330620, 477502, 537410, 955004, 1074820, 1193755, 2387510, 4775020, 14563811, 29127622, 58255244, 72819055, 145638110, 291276220]

約数ペア:

[(1, 291276220), (2, 145638110), (4, 72819055), (5, 58255244), (10, 29127622), (20, 14563811), (61, 4775020), (122, 2387510), (244, 1193755), (271, 1074820), (305, 955004), (542, 537410), (610, 477502), (881, 330620), (1084, 268705), (1220, 238751), (1355, 214964), (1762, 165310), (2710, 107482), (3524, 82655), (4405, 66124), (5420, 53741), (8810, 33062), (16531, 17620)]