89145680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{85717}}^1$

素因数の和:85743

約数の個数: 40

約数和(自身を含む): 223209672

約数和(自身を除く): 134063992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 85717, 171434, 342868, 428585, 685736, 857170, 1114321, 1371472, 1714340, 2228642, 3428680, 4457284, 5571605, 6857360, 8914568, 11143210, 17829136, 22286420, 44572840, 89145680]

約数ペア:

[(1, 89145680), (2, 44572840), (4, 22286420), (5, 17829136), (8, 11143210), (10, 8914568), (13, 6857360), (16, 5571605), (20, 4457284), (26, 3428680), (40, 2228642), (52, 1714340), (65, 1371472), (80, 1114321), (104, 857170), (130, 685736), (208, 428585), (260, 342868), (520, 171434), (1040, 85717)]