28103697013940

素因数分解:

$2^2\times 5^1\times {\mathrm{74891}}^1\times {\mathrm{18763067}}^1$

素因数の和:18837967

約数の個数: 24

約数和(自身を含む): 59018554923552

約数和(自身を除く): 30914857909612

約数列:

[1, 2, 4, 5, 10, 20, 74891, 149782, 299564, 374455, 748910, 1497820, 18763067, 37526134, 75052268, 93815335, 187630670, 375261340, 1405184850697, 2810369701394, 5620739402788, 7025924253485, 14051848506970, 28103697013940]

約数ペア:

[(1, 28103697013940), (2, 14051848506970), (4, 7025924253485), (5, 5620739402788), (10, 2810369701394), (20, 1405184850697), (74891, 375261340), (149782, 187630670), (299564, 93815335), (374455, 75052268), (748910, 37526134), (1497820, 18763067)]