20885320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16843}}^1$

素因数の和:16885

約数の個数: 32

約数和(自身を含む): 48510720

約数和(自身を除く): 27625400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16843, 33686, 67372, 84215, 134744, 168430, 336860, 522133, 673720, 1044266, 2088532, 2610665, 4177064, 5221330, 10442660, 20885320]

約数ペア:

[(1, 20885320), (2, 10442660), (4, 5221330), (5, 4177064), (8, 2610665), (10, 2088532), (20, 1044266), (31, 673720), (40, 522133), (62, 336860), (124, 168430), (155, 134744), (248, 84215), (310, 67372), (620, 33686), (1240, 16843)]