18321620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1019}}^1$

素因数の和:1088

約数の個数: 48

約数和(自身を含む): 41126400

約数和(自身を除く): 22804780

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1019, 1798, 2038, 3596, 4076, 4495, 5095, 8990, 10190, 17980, 20380, 29551, 31589, 59102, 63178, 118204, 126356, 147755, 157945, 295510, 315890, 591020, 631780, 916081, 1832162, 3664324, 4580405, 9160810, 18321620]

約数ペア:

[(1, 18321620), (2, 9160810), (4, 4580405), (5, 3664324), (10, 1832162), (20, 916081), (29, 631780), (31, 591020), (58, 315890), (62, 295510), (116, 157945), (124, 147755), (145, 126356), (155, 118204), (290, 63178), (310, 59102), (580, 31589), (620, 29551), (899, 20380), (1019, 17980), (1798, 10190), (2038, 8990), (3596, 5095), (4076, 4495)]