1881110

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{349}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 4309200

約数和(自身を除く): 2428090

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 349, 385, 490, 539, 698, 770, 1078, 1745, 2443, 2695, 3490, 3839, 4886, 5390, 7678, 12215, 17101, 19195, 24430, 26873, 34202, 38390, 53746, 85505, 134365, 171010, 188111, 268730, 376222, 940555, 1881110]

約数ペア:

[(1, 1881110), (2, 940555), (5, 376222), (7, 268730), (10, 188111), (11, 171010), (14, 134365), (22, 85505), (35, 53746), (49, 38390), (55, 34202), (70, 26873), (77, 24430), (98, 19195), (110, 17101), (154, 12215), (245, 7678), (349, 5390), (385, 4886), (490, 3839), (539, 3490), (698, 2695), (770, 2443), (1078, 1745)]