12831975

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 25592112

約数和(自身を除く): 12760137

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 41, 45, 65, 75, 107, 117, 123, 195, 205, 225, 321, 325, 369, 533, 535, 585, 615, 963, 975, 1025, 1391, 1599, 1605, 1845, 2665, 2675, 2925, 3075, 4173, 4387, 4797, 4815, 6955, 7995, 8025, 9225, 12519, 13161, 13325, 20865, 21935, 23985, 24075, 34775, 39483, 39975, 57031, 62595, 65805, 104325, 109675, 119925, 171093, 197415, 285155, 312975, 329025, 513279, 855465, 987075, 1425775, 2566395, 4277325, 12831975]

約数ペア:

[(1, 12831975), (3, 4277325), (5, 2566395), (9, 1425775), (13, 987075), (15, 855465), (25, 513279), (39, 329025), (41, 312975), (45, 285155), (65, 197415), (75, 171093), (107, 119925), (117, 109675), (123, 104325), (195, 65805), (205, 62595), (225, 57031), (321, 39975), (325, 39483), (369, 34775), (533, 24075), (535, 23985), (585, 21935), (615, 20865), (963, 13325), (975, 13161), (1025, 12519), (1391, 9225), (1599, 8025), (1605, 7995), (1845, 6955), (2665, 4815), (2675, 4797), (2925, 4387), (3075, 4173)]