78858250

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 155844000

約数和(自身を除く): 76985750

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 73, 125, 145, 146, 149, 250, 290, 298, 365, 725, 730, 745, 1450, 1490, 1825, 2117, 3625, 3650, 3725, 4234, 4321, 7250, 7450, 8642, 9125, 10585, 10877, 18250, 18625, 21170, 21605, 21754, 37250, 43210, 52925, 54385, 105850, 108025, 108770, 216050, 264625, 271925, 315433, 529250, 540125, 543850, 630866, 1080250, 1359625, 1577165, 2719250, 3154330, 7885825, 15771650, 39429125, 78858250]

約数ペア:

[(1, 78858250), (2, 39429125), (5, 15771650), (10, 7885825), (25, 3154330), (29, 2719250), (50, 1577165), (58, 1359625), (73, 1080250), (125, 630866), (145, 543850), (146, 540125), (149, 529250), (250, 315433), (290, 271925), (298, 264625), (365, 216050), (725, 108770), (730, 108025), (745, 105850), (1450, 54385), (1490, 52925), (1825, 43210), (2117, 37250), (3625, 21754), (3650, 21605), (3725, 21170), (4234, 18625), (4321, 18250), (7250, 10877), (7450, 10585), (8642, 9125)]