90903075

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 156347136

約数和(自身を除く): 65444061

約数列:

[1, 3, 5, 15, 25, 43, 71, 75, 129, 213, 215, 355, 397, 645, 1065, 1075, 1191, 1775, 1985, 3053, 3225, 5325, 5955, 9159, 9925, 15265, 17071, 28187, 29775, 45795, 51213, 76325, 84561, 85355, 140935, 228975, 256065, 422805, 426775, 704675, 1212041, 1280325, 2114025, 3636123, 6060205, 18180615, 30301025, 90903075]

約数ペア:

[(1, 90903075), (3, 30301025), (5, 18180615), (15, 6060205), (25, 3636123), (43, 2114025), (71, 1280325), (75, 1212041), (129, 704675), (213, 426775), (215, 422805), (355, 256065), (397, 228975), (645, 140935), (1065, 85355), (1075, 84561), (1191, 76325), (1775, 51213), (1985, 45795), (3053, 29775), (3225, 28187), (5325, 17071), (5955, 15265), (9159, 9925)]