2015694875

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 2688491520

約数和(自身を除く): 672796645

約数列:

[1, 5, 25, 43, 47, 79, 101, 125, 215, 235, 395, 505, 1075, 1175, 1975, 2021, 2525, 3397, 3713, 4343, 4747, 5375, 5875, 7979, 9875, 10105, 12625, 16985, 18565, 21715, 23735, 39895, 50525, 84925, 92825, 108575, 118675, 159659, 199475, 204121, 252625, 343097, 375013, 424625, 464125, 542875, 593375, 798295, 997375, 1020605, 1715485, 1875065, 3991475, 5103025, 8577425, 9375325, 16125559, 19957375, 25515125, 42887125, 46876625, 80627795, 403138975, 2015694875]

約数ペア:

[(1, 2015694875), (5, 403138975), (25, 80627795), (43, 46876625), (47, 42887125), (79, 25515125), (101, 19957375), (125, 16125559), (215, 9375325), (235, 8577425), (395, 5103025), (505, 3991475), (1075, 1875065), (1175, 1715485), (1975, 1020605), (2021, 997375), (2525, 798295), (3397, 593375), (3713, 542875), (4343, 464125), (4747, 424625), (5375, 375013), (5875, 343097), (7979, 252625), (9875, 204121), (10105, 199475), (12625, 159659), (16985, 118675), (18565, 108575), (21715, 92825), (23735, 84925), (39895, 50525)]