1978090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:414

約数の個数: 32

約数和(自身を含む): 3888000

約数和(自身を除く): 1909910

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 359, 551, 718, 1102, 1795, 2755, 3590, 5510, 6821, 10411, 13642, 20822, 34105, 52055, 68210, 104110, 197809, 395618, 989045, 1978090]

約数ペア:

[(1, 1978090), (2, 989045), (5, 395618), (10, 197809), (19, 104110), (29, 68210), (38, 52055), (58, 34105), (95, 20822), (145, 13642), (190, 10411), (290, 6821), (359, 5510), (551, 3590), (718, 2755), (1102, 1795)]