128215425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1229}}^1$

素因数の和:1362

約数の個数: 48

約数和(自身を含む): 230610240

約数和(自身を除く): 102394815

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 107, 195, 321, 325, 535, 975, 1229, 1391, 1605, 2675, 3687, 4173, 6145, 6955, 8025, 15977, 18435, 20865, 30725, 34775, 47931, 79885, 92175, 104325, 131503, 239655, 394509, 399425, 657515, 1198275, 1709539, 1972545, 3287575, 5128617, 8547695, 9862725, 25643085, 42738475, 128215425]

約数ペア:

[(1, 128215425), (3, 42738475), (5, 25643085), (13, 9862725), (15, 8547695), (25, 5128617), (39, 3287575), (65, 1972545), (75, 1709539), (107, 1198275), (195, 657515), (321, 399425), (325, 394509), (535, 239655), (975, 131503), (1229, 104325), (1391, 92175), (1605, 79885), (2675, 47931), (3687, 34775), (4173, 30725), (6145, 20865), (6955, 18435), (8025, 15977)]