20511331360

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9861217}}^1$

素因数の和:9861245

約数の個数: 48

約数和(自身を含む): 52185565656

約数和(自身を除く): 31674234296

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9861217, 19722434, 39444868, 49306085, 78889736, 98612170, 128195821, 157779472, 197224340, 256391642, 315558944, 394448680, 512783284, 640979105, 788897360, 1025566568, 1281958210, 1577794720, 2051133136, 2563916420, 4102266272, 5127832840, 10255665680, 20511331360]

約数ペア:

[(1, 20511331360), (2, 10255665680), (4, 5127832840), (5, 4102266272), (8, 2563916420), (10, 2051133136), (13, 1577794720), (16, 1281958210), (20, 1025566568), (26, 788897360), (32, 640979105), (40, 512783284), (52, 394448680), (65, 315558944), (80, 256391642), (104, 197224340), (130, 157779472), (160, 128195821), (208, 98612170), (260, 78889736), (416, 49306085), (520, 39444868), (1040, 19722434), (2080, 9861217)]