31396890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{487}}^1$

素因数の和:811

約数の個数: 64

約数和(自身を含む): 86575104

約数和(自身を除く): 55178214

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 307, 487, 614, 921, 974, 1461, 1535, 1842, 2149, 2435, 2922, 3070, 3409, 4298, 4605, 4870, 6447, 6818, 7305, 9210, 10227, 10745, 12894, 14610, 17045, 20454, 21490, 32235, 34090, 51135, 64470, 102270, 149509, 299018, 448527, 747545, 897054, 1046563, 1495090, 2093126, 2242635, 3139689, 4485270, 5232815, 6279378, 10465630, 15698445, 31396890]

約数ペア:

[(1, 31396890), (2, 15698445), (3, 10465630), (5, 6279378), (6, 5232815), (7, 4485270), (10, 3139689), (14, 2242635), (15, 2093126), (21, 1495090), (30, 1046563), (35, 897054), (42, 747545), (70, 448527), (105, 299018), (210, 149509), (307, 102270), (487, 64470), (614, 51135), (921, 34090), (974, 32235), (1461, 21490), (1535, 20454), (1842, 17045), (2149, 14610), (2435, 12894), (2922, 10745), (3070, 10227), (3409, 9210), (4298, 7305), (4605, 6818), (4870, 6447)]