129407980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{9391}}^1$

素因数の和:9466

約数の個数: 48

約数和(自身を含む): 298214784

約数和(自身を除く): 168806804

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6890, 9391, 13780, 18782, 37564, 46955, 93910, 122083, 187820, 244166, 488332, 497723, 610415, 995446, 1220830, 1990892, 2441660, 2488615, 4977230, 6470399, 9954460, 12940798, 25881596, 32351995, 64703990, 129407980]

約数ペア:

[(1, 129407980), (2, 64703990), (4, 32351995), (5, 25881596), (10, 12940798), (13, 9954460), (20, 6470399), (26, 4977230), (52, 2488615), (53, 2441660), (65, 1990892), (106, 1220830), (130, 995446), (212, 610415), (260, 497723), (265, 488332), (530, 244166), (689, 187820), (1060, 122083), (1378, 93910), (2756, 46955), (3445, 37564), (6890, 18782), (9391, 13780)]