18388090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 21528710

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 43, 70, 82, 86, 149, 205, 215, 287, 298, 301, 410, 430, 574, 602, 745, 1043, 1435, 1490, 1505, 1763, 2086, 2870, 3010, 3526, 5215, 6109, 6407, 8815, 10430, 12218, 12341, 12814, 17630, 24682, 30545, 32035, 42763, 44849, 61090, 61705, 64070, 85526, 89698, 123410, 213815, 224245, 262687, 427630, 448490, 525374, 1313435, 1838809, 2626870, 3677618, 9194045, 18388090]

約数ペア:

[(1, 18388090), (2, 9194045), (5, 3677618), (7, 2626870), (10, 1838809), (14, 1313435), (35, 525374), (41, 448490), (43, 427630), (70, 262687), (82, 224245), (86, 213815), (149, 123410), (205, 89698), (215, 85526), (287, 64070), (298, 61705), (301, 61090), (410, 44849), (430, 42763), (574, 32035), (602, 30545), (745, 24682), (1043, 17630), (1435, 12814), (1490, 12341), (1505, 12218), (1763, 10430), (2086, 8815), (2870, 6407), (3010, 6109), (3526, 5215)]