381940

素因数分解:

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

素因数の和:148

約数の個数: 36

約数和(自身を含む): 876204

約数和(自身を除く): 494264

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 169, 226, 260, 338, 452, 565, 676, 845, 1130, 1469, 1690, 2260, 2938, 3380, 5876, 7345, 14690, 19097, 29380, 38194, 76388, 95485, 190970, 381940]

約数ペア:

[(1, 381940), (2, 190970), (4, 95485), (5, 76388), (10, 38194), (13, 29380), (20, 19097), (26, 14690), (52, 7345), (65, 5876), (113, 3380), (130, 2938), (169, 2260), (226, 1690), (260, 1469), (338, 1130), (452, 845), (565, 676)]