19368700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 46372032

約数和(自身を除く): 27003332

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 47, 50, 52, 65, 94, 100, 130, 188, 235, 260, 317, 325, 470, 611, 634, 650, 940, 1175, 1222, 1268, 1300, 1585, 2350, 2444, 3055, 3170, 4121, 4700, 6110, 6340, 7925, 8242, 12220, 14899, 15275, 15850, 16484, 20605, 29798, 30550, 31700, 41210, 59596, 61100, 74495, 82420, 103025, 148990, 193687, 206050, 297980, 372475, 387374, 412100, 744950, 774748, 968435, 1489900, 1936870, 3873740, 4842175, 9684350, 19368700]

約数ペア:

[(1, 19368700), (2, 9684350), (4, 4842175), (5, 3873740), (10, 1936870), (13, 1489900), (20, 968435), (25, 774748), (26, 744950), (47, 412100), (50, 387374), (52, 372475), (65, 297980), (94, 206050), (100, 193687), (130, 148990), (188, 103025), (235, 82420), (260, 74495), (317, 61100), (325, 59596), (470, 41210), (611, 31700), (634, 30550), (650, 29798), (940, 20605), (1175, 16484), (1222, 15850), (1268, 15275), (1300, 14899), (1585, 12220), (2350, 8242), (2444, 7925), (3055, 6340), (3170, 6110), (4121, 4700)]