20808429420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20400421}}^1$

素因数の和:20400450

約数の個数: 48

約数和(自身を含む): 61690876128

約数和(自身を除く): 40882446708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20400421, 40800842, 61201263, 81601684, 102002105, 122402526, 204004210, 244805052, 306006315, 346807157, 408008420, 612012630, 693614314, 1040421471, 1224025260, 1387228628, 1734035785, 2080842942, 3468071570, 4161685884, 5202107355, 6936143140, 10404214710, 20808429420]

約数ペア:

[(1, 20808429420), (2, 10404214710), (3, 6936143140), (4, 5202107355), (5, 4161685884), (6, 3468071570), (10, 2080842942), (12, 1734035785), (15, 1387228628), (17, 1224025260), (20, 1040421471), (30, 693614314), (34, 612012630), (51, 408008420), (60, 346807157), (68, 306006315), (85, 244805052), (102, 204004210), (170, 122402526), (204, 102002105), (255, 81601684), (340, 61201263), (510, 40800842), (1020, 20400421)]