51393940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2221}}^1$

素因数の和:2332

約数の個数: 48

約数和(自身を含む): 117588240

約数和(自身を除く): 66194300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1780, 2221, 2314, 4442, 4628, 5785, 8884, 11105, 11570, 22210, 23140, 28873, 44420, 57746, 115492, 144365, 197669, 288730, 395338, 577460, 790676, 988345, 1976690, 2569697, 3953380, 5139394, 10278788, 12848485, 25696970, 51393940]

約数ペア:

[(1, 51393940), (2, 25696970), (4, 12848485), (5, 10278788), (10, 5139394), (13, 3953380), (20, 2569697), (26, 1976690), (52, 988345), (65, 790676), (89, 577460), (130, 395338), (178, 288730), (260, 197669), (356, 144365), (445, 115492), (890, 57746), (1157, 44420), (1780, 28873), (2221, 23140), (2314, 22210), (4442, 11570), (4628, 11105), (5785, 8884)]