129121980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{165541}}^1$

素因数の和:165566

約数の個数: 48

約数和(自身を含む): 389354784

約数和(自身を除く): 260232804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 165541, 331082, 496623, 662164, 827705, 993246, 1655410, 1986492, 2152033, 2483115, 3310820, 4304066, 4966230, 6456099, 8608132, 9932460, 10760165, 12912198, 21520330, 25824396, 32280495, 43040660, 64560990, 129121980]

約数ペア:

[(1, 129121980), (2, 64560990), (3, 43040660), (4, 32280495), (5, 25824396), (6, 21520330), (10, 12912198), (12, 10760165), (13, 9932460), (15, 8608132), (20, 6456099), (26, 4966230), (30, 4304066), (39, 3310820), (52, 2483115), (60, 2152033), (65, 1986492), (78, 1655410), (130, 993246), (156, 827705), (195, 662164), (260, 496623), (390, 331082), (780, 165541)]