1990665

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1427}}^1$

素因数の和:1469

約数の個数: 24

約数和(自身を含む): 3564288

約数和(自身を除く): 1573623

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 1427, 4281, 7135, 12843, 21405, 44237, 64215, 132711, 221185, 398133, 663555, 1990665]

約数ペア:

[(1, 1990665), (3, 663555), (5, 398133), (9, 221185), (15, 132711), (31, 64215), (45, 44237), (93, 21405), (155, 12843), (279, 7135), (465, 4281), (1395, 1427)]