72170020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277577}}^1$

素因数の和:277599

約数の個数: 24

約数和(自身を含む): 163215864

約数和(自身を除く): 91045844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 277577, 555154, 1110308, 1387885, 2775770, 3608501, 5551540, 7217002, 14434004, 18042505, 36085010, 72170020]

約数ペア:

[(1, 72170020), (2, 36085010), (4, 18042505), (5, 14434004), (10, 7217002), (13, 5551540), (20, 3608501), (26, 2775770), (52, 1387885), (65, 1110308), (130, 555154), (260, 277577)]