42561220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163697}}^1$

素因数の和:163719

約数の個数: 24

約数和(自身を含む): 96254424

約数和(自身を除く): 53693204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 163697, 327394, 654788, 818485, 1636970, 2128061, 3273940, 4256122, 8512244, 10640305, 21280610, 42561220]

約数ペア:

[(1, 42561220), (2, 21280610), (4, 10640305), (5, 8512244), (10, 4256122), (13, 3273940), (20, 2128061), (26, 1636970), (52, 818485), (65, 654788), (130, 327394), (260, 163697)]