51172420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{196817}}^1$

素因数の和:196839

約数の個数: 24

約数和(自身を含む): 115728984

約数和(自身を除く): 64556564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 196817, 393634, 787268, 984085, 1968170, 2558621, 3936340, 5117242, 10234484, 12793105, 25586210, 51172420]

約数ペア:

[(1, 51172420), (2, 25586210), (4, 12793105), (5, 10234484), (10, 5117242), (13, 3936340), (20, 2558621), (26, 1968170), (52, 984085), (65, 787268), (130, 393634), (260, 196817)]