64721025

素因数分解:

$3^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1084

約数の個数: 60

約数和(自身を含む): 123873024

約数和(自身を除く): 59151999

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 81, 93, 135, 155, 225, 279, 405, 465, 675, 775, 837, 1031, 1395, 2025, 2325, 2511, 3093, 4185, 5155, 6975, 9279, 12555, 15465, 20925, 25775, 27837, 31961, 46395, 62775, 77325, 83511, 95883, 139185, 159805, 231975, 287649, 417555, 479415, 695925, 799025, 862947, 1438245, 2087775, 2397075, 2588841, 4314735, 7191225, 12944205, 21573675, 64721025]

約数ペア:

[(1, 64721025), (3, 21573675), (5, 12944205), (9, 7191225), (15, 4314735), (25, 2588841), (27, 2397075), (31, 2087775), (45, 1438245), (75, 862947), (81, 799025), (93, 695925), (135, 479415), (155, 417555), (225, 287649), (279, 231975), (405, 159805), (465, 139185), (675, 95883), (775, 83511), (837, 77325), (1031, 62775), (1395, 46395), (2025, 31961), (2325, 27837), (2511, 25775), (3093, 20925), (4185, 15465), (5155, 12555), (6975, 9279)]