52740220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2857}}^1$

素因数の和:2950

約数の個数: 48

約数和(自身を含む): 120996288

約数和(自身を除く): 68256068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 2857, 3692, 4615, 5714, 9230, 11428, 14285, 18460, 28570, 37141, 57140, 74282, 148564, 185705, 202847, 371410, 405694, 742820, 811388, 1014235, 2028470, 2637011, 4056940, 5274022, 10548044, 13185055, 26370110, 52740220]

約数ペア:

[(1, 52740220), (2, 26370110), (4, 13185055), (5, 10548044), (10, 5274022), (13, 4056940), (20, 2637011), (26, 2028470), (52, 1014235), (65, 811388), (71, 742820), (130, 405694), (142, 371410), (260, 202847), (284, 185705), (355, 148564), (710, 74282), (923, 57140), (1420, 37141), (1846, 28570), (2857, 18460), (3692, 14285), (4615, 11428), (5714, 9230)]