2155590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:613

約数の個数: 48

約数和(自身を含む): 5745168

約数和(自身を除く): 3589578

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 557, 645, 774, 1114, 1290, 1671, 1935, 2785, 3342, 3870, 5013, 5570, 8355, 10026, 16710, 23951, 25065, 47902, 50130, 71853, 119755, 143706, 215559, 239510, 359265, 431118, 718530, 1077795, 2155590]

約数ペア:

[(1, 2155590), (2, 1077795), (3, 718530), (5, 431118), (6, 359265), (9, 239510), (10, 215559), (15, 143706), (18, 119755), (30, 71853), (43, 50130), (45, 47902), (86, 25065), (90, 23951), (129, 16710), (215, 10026), (258, 8355), (387, 5570), (430, 5013), (557, 3870), (645, 3342), (774, 2785), (1114, 1935), (1290, 1671)]