641564925

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 1166592000

約数和(自身を除く): 525027075

約数列:

[1, 3, 5, 15, 19, 25, 41, 57, 75, 79, 95, 123, 139, 205, 237, 285, 395, 417, 475, 615, 695, 779, 1025, 1185, 1425, 1501, 1975, 2085, 2337, 2641, 3075, 3239, 3475, 3895, 4503, 5699, 5925, 7505, 7923, 9717, 10425, 10981, 11685, 13205, 16195, 17097, 19475, 22515, 28495, 32943, 37525, 39615, 48585, 54905, 58425, 61541, 66025, 80975, 85485, 108281, 112575, 142475, 164715, 184623, 198075, 208639, 242925, 274525, 307705, 324843, 427425, 450221, 541405, 625917, 823575, 923115, 1043195, 1350663, 1538525, 1624215, 2251105, 2707025, 3129585, 4615575, 5215975, 6753315, 8121075, 8554199, 11255525, 15647925, 25662597, 33766575, 42770995, 128312985, 213854975, 641564925]

約数ペア:

[(1, 641564925), (3, 213854975), (5, 128312985), (15, 42770995), (19, 33766575), (25, 25662597), (41, 15647925), (57, 11255525), (75, 8554199), (79, 8121075), (95, 6753315), (123, 5215975), (139, 4615575), (205, 3129585), (237, 2707025), (285, 2251105), (395, 1624215), (417, 1538525), (475, 1350663), (615, 1043195), (695, 923115), (779, 823575), (1025, 625917), (1185, 541405), (1425, 450221), (1501, 427425), (1975, 324843), (2085, 307705), (2337, 274525), (2641, 242925), (3075, 208639), (3239, 198075), (3475, 184623), (3895, 164715), (4503, 142475), (5699, 112575), (5925, 108281), (7505, 85485), (7923, 80975), (9717, 66025), (10425, 61541), (10981, 58425), (11685, 54905), (13205, 48585), (16195, 39615), (17097, 37525), (19475, 32943), (22515, 28495)]