20104710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:605

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 31735290

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 79, 85, 102, 158, 170, 237, 255, 395, 474, 499, 510, 790, 998, 1185, 1343, 1497, 2370, 2495, 2686, 2994, 4029, 4990, 6715, 7485, 8058, 8483, 13430, 14970, 16966, 20145, 25449, 39421, 40290, 42415, 50898, 78842, 84830, 118263, 127245, 197105, 236526, 254490, 394210, 591315, 670157, 1182630, 1340314, 2010471, 3350785, 4020942, 6701570, 10052355, 20104710]

約数ペア:

[(1, 20104710), (2, 10052355), (3, 6701570), (5, 4020942), (6, 3350785), (10, 2010471), (15, 1340314), (17, 1182630), (30, 670157), (34, 591315), (51, 394210), (79, 254490), (85, 236526), (102, 197105), (158, 127245), (170, 118263), (237, 84830), (255, 78842), (395, 50898), (474, 42415), (499, 40290), (510, 39421), (790, 25449), (998, 20145), (1185, 16966), (1343, 14970), (1497, 13430), (2370, 8483), (2495, 8058), (2686, 7485), (2994, 6715), (4029, 4990)]