2619990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:733

約数の個数: 48

約数和(自身を含む): 6980688

約数和(自身を除く): 4360698

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 677, 774, 1290, 1354, 1935, 2031, 3385, 3870, 4062, 6093, 6770, 10155, 12186, 20310, 29111, 30465, 58222, 60930, 87333, 145555, 174666, 261999, 291110, 436665, 523998, 873330, 1309995, 2619990]

約数ペア:

[(1, 2619990), (2, 1309995), (3, 873330), (5, 523998), (6, 436665), (9, 291110), (10, 261999), (15, 174666), (18, 145555), (30, 87333), (43, 60930), (45, 58222), (86, 30465), (90, 29111), (129, 20310), (215, 12186), (258, 10155), (387, 6770), (430, 6093), (645, 4062), (677, 3870), (774, 3385), (1290, 2031), (1354, 1935)]