90940720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87443}}^1$

素因数の和:87469

約数の個数: 40

約数和(自身を含む): 227704176

約数和(自身を除く): 136763456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 87443, 174886, 349772, 437215, 699544, 874430, 1136759, 1399088, 1748860, 2273518, 3497720, 4547036, 5683795, 6995440, 9094072, 11367590, 18188144, 22735180, 45470360, 90940720]

約数ペア:

[(1, 90940720), (2, 45470360), (4, 22735180), (5, 18188144), (8, 11367590), (10, 9094072), (13, 6995440), (16, 5683795), (20, 4547036), (26, 3497720), (40, 2273518), (52, 1748860), (65, 1399088), (80, 1136759), (104, 874430), (130, 699544), (208, 437215), (260, 349772), (520, 174886), (1040, 87443)]