20538120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5521}}^1$

素因数の和:5566

約数の個数: 64

約数和(自身を含む): 63613440

約数和(自身を除く): 43075320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 5521, 11042, 16563, 22084, 27605, 33126, 44168, 55210, 66252, 82815, 110420, 132504, 165630, 171151, 220840, 331260, 342302, 513453, 662520, 684604, 855755, 1026906, 1369208, 1711510, 2053812, 2567265, 3423020, 4107624, 5134530, 6846040, 10269060, 20538120]

約数ペア:

[(1, 20538120), (2, 10269060), (3, 6846040), (4, 5134530), (5, 4107624), (6, 3423020), (8, 2567265), (10, 2053812), (12, 1711510), (15, 1369208), (20, 1026906), (24, 855755), (30, 684604), (31, 662520), (40, 513453), (60, 342302), (62, 331260), (93, 220840), (120, 171151), (124, 165630), (155, 132504), (186, 110420), (248, 82815), (310, 66252), (372, 55210), (465, 44168), (620, 33126), (744, 27605), (930, 22084), (1240, 16563), (1860, 11042), (3720, 5521)]