289300880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{631}}^1$

素因数の和:1176

約数の個数: 80

約数和(自身を含む): 736345728

約数和(自身を除く): 447044848

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 521, 631, 880, 1042, 1262, 2084, 2524, 2605, 3155, 4168, 5048, 5210, 5731, 6310, 6941, 8336, 10096, 10420, 11462, 12620, 13882, 20840, 22924, 25240, 27764, 28655, 34705, 41680, 45848, 50480, 55528, 57310, 69410, 91696, 111056, 114620, 138820, 229240, 277640, 328751, 458480, 555280, 657502, 1315004, 1643755, 2630008, 3287510, 3616261, 5260016, 6575020, 7232522, 13150040, 14465044, 18081305, 26300080, 28930088, 36162610, 57860176, 72325220, 144650440, 289300880]

約数ペア:

[(1, 289300880), (2, 144650440), (4, 72325220), (5, 57860176), (8, 36162610), (10, 28930088), (11, 26300080), (16, 18081305), (20, 14465044), (22, 13150040), (40, 7232522), (44, 6575020), (55, 5260016), (80, 3616261), (88, 3287510), (110, 2630008), (176, 1643755), (220, 1315004), (440, 657502), (521, 555280), (631, 458480), (880, 328751), (1042, 277640), (1262, 229240), (2084, 138820), (2524, 114620), (2605, 111056), (3155, 91696), (4168, 69410), (5048, 57310), (5210, 55528), (5731, 50480), (6310, 45848), (6941, 41680), (8336, 34705), (10096, 28655), (10420, 27764), (11462, 25240), (12620, 22924), (13882, 20840)]