55409840

素因数分解:

$2^4\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1213}}^1$

素因数の和:1797

約数の個数: 40

約数和(自身を含む): 129159888

約数和(自身を除く): 73750048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 571, 1142, 1213, 2284, 2426, 2855, 4568, 4852, 5710, 6065, 9136, 9704, 11420, 12130, 19408, 22840, 24260, 45680, 48520, 97040, 692623, 1385246, 2770492, 3463115, 5540984, 6926230, 11081968, 13852460, 27704920, 55409840]

約数ペア:

[(1, 55409840), (2, 27704920), (4, 13852460), (5, 11081968), (8, 6926230), (10, 5540984), (16, 3463115), (20, 2770492), (40, 1385246), (80, 692623), (571, 97040), (1142, 48520), (1213, 45680), (2284, 24260), (2426, 22840), (2855, 19408), (4568, 12130), (4852, 11420), (5710, 9704), (6065, 9136)]