42631940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12613}}^1$

素因数の和:12648

約数の個数: 36

約数和(自身を含む): 96951204

約数和(自身を除く): 54319264

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 12613, 25226, 50452, 63065, 126130, 163969, 252260, 327938, 655876, 819845, 1639690, 2131597, 3279380, 4263194, 8526388, 10657985, 21315970, 42631940]

約数ペア:

[(1, 42631940), (2, 21315970), (4, 10657985), (5, 8526388), (10, 4263194), (13, 3279380), (20, 2131597), (26, 1639690), (52, 819845), (65, 655876), (130, 327938), (169, 252260), (260, 163969), (338, 126130), (676, 63065), (845, 50452), (1690, 25226), (3380, 12613)]