83720925

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4001}}^1$

素因数の和:4051

約数の個数: 48

約数和(自身を含む): 158799360

約数和(自身を除く): 75078435

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 135, 155, 225, 279, 465, 675, 775, 837, 1395, 2325, 4001, 4185, 6975, 12003, 20005, 20925, 36009, 60015, 100025, 108027, 124031, 180045, 300075, 372093, 540135, 620155, 900225, 1116279, 1860465, 2700675, 3100775, 3348837, 5581395, 9302325, 16744185, 27906975, 83720925]

約数ペア:

[(1, 83720925), (3, 27906975), (5, 16744185), (9, 9302325), (15, 5581395), (25, 3348837), (27, 3100775), (31, 2700675), (45, 1860465), (75, 1116279), (93, 900225), (135, 620155), (155, 540135), (225, 372093), (279, 300075), (465, 180045), (675, 124031), (775, 108027), (837, 100025), (1395, 60015), (2325, 36009), (4001, 20925), (4185, 20005), (6975, 12003)]