78121575

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:473

約数の個数: 72

約数和(自身を含む): 161367648

約数和(自身を除く): 83246073

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 193, 225, 257, 315, 525, 579, 771, 965, 1285, 1351, 1575, 1737, 1799, 2313, 2895, 3855, 4053, 4825, 5397, 6425, 6755, 8685, 8995, 11565, 12159, 14475, 16191, 19275, 20265, 26985, 33775, 43425, 44975, 49601, 57825, 60795, 80955, 101325, 134925, 148803, 248005, 303975, 347207, 404775, 446409, 744015, 1041621, 1240025, 1736035, 2232045, 3124863, 3720075, 5208105, 8680175, 11160225, 15624315, 26040525, 78121575]

約数ペア:

[(1, 78121575), (3, 26040525), (5, 15624315), (7, 11160225), (9, 8680175), (15, 5208105), (21, 3720075), (25, 3124863), (35, 2232045), (45, 1736035), (63, 1240025), (75, 1041621), (105, 744015), (175, 446409), (193, 404775), (225, 347207), (257, 303975), (315, 248005), (525, 148803), (579, 134925), (771, 101325), (965, 80955), (1285, 60795), (1351, 57825), (1575, 49601), (1737, 44975), (1799, 43425), (2313, 33775), (2895, 26985), (3855, 20265), (4053, 19275), (4825, 16191), (5397, 14475), (6425, 12159), (6755, 11565), (8685, 8995)]