20185581645

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1\times {\mathrm{7297}}^1$

素因数の和:8003

約数の個数: 64

約数和(自身を含む): 37104199680

約数和(自身を除く): 16918618035

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 661, 837, 1395, 1983, 3305, 4185, 5949, 7297, 9915, 17847, 20491, 21891, 29745, 36485, 61473, 65673, 89235, 102455, 109455, 184419, 197019, 226207, 307365, 328365, 553257, 678621, 922095, 985095, 1131035, 2035863, 2766285, 3393105, 4823317, 6107589, 10179315, 14469951, 24116585, 30537945, 43409853, 72349755, 130229559, 149522827, 217049265, 448568481, 651147795, 747614135, 1345705443, 2242842405, 4037116329, 6728527215, 20185581645]

約数ペア:

[(1, 20185581645), (3, 6728527215), (5, 4037116329), (9, 2242842405), (15, 1345705443), (27, 747614135), (31, 651147795), (45, 448568481), (93, 217049265), (135, 149522827), (155, 130229559), (279, 72349755), (465, 43409853), (661, 30537945), (837, 24116585), (1395, 14469951), (1983, 10179315), (3305, 6107589), (4185, 4823317), (5949, 3393105), (7297, 2766285), (9915, 2035863), (17847, 1131035), (20491, 985095), (21891, 922095), (29745, 678621), (36485, 553257), (61473, 328365), (65673, 307365), (89235, 226207), (102455, 197019), (109455, 184419)]