27881620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 64839096

約数和(自身を除く): 36957476

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 113, 130, 146, 169, 226, 260, 292, 338, 365, 452, 565, 676, 730, 845, 949, 1130, 1460, 1469, 1690, 1898, 2260, 2938, 3380, 3796, 4745, 5876, 7345, 8249, 9490, 12337, 14690, 16498, 18980, 19097, 24674, 29380, 32996, 38194, 41245, 49348, 61685, 76388, 82490, 95485, 107237, 123370, 164980, 190970, 214474, 246740, 381940, 428948, 536185, 1072370, 1394081, 2144740, 2788162, 5576324, 6970405, 13940810, 27881620]

約数ペア:

[(1, 27881620), (2, 13940810), (4, 6970405), (5, 5576324), (10, 2788162), (13, 2144740), (20, 1394081), (26, 1072370), (52, 536185), (65, 428948), (73, 381940), (113, 246740), (130, 214474), (146, 190970), (169, 164980), (226, 123370), (260, 107237), (292, 95485), (338, 82490), (365, 76388), (452, 61685), (565, 49348), (676, 41245), (730, 38194), (845, 32996), (949, 29380), (1130, 24674), (1460, 19097), (1469, 18980), (1690, 16498), (1898, 14690), (2260, 12337), (2938, 9490), (3380, 8249), (3796, 7345), (4745, 5876)]