724842620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{541}}^1\times {\mathrm{2161}}^1$

素因数の和:2742

約数の個数: 48

約数和(自身を含む): 1574904576

約数和(自身を除く): 850061956

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 541, 620, 1082, 2161, 2164, 2705, 4322, 5410, 8644, 10805, 10820, 16771, 21610, 33542, 43220, 66991, 67084, 83855, 133982, 167710, 267964, 334955, 335420, 669910, 1169101, 1339820, 2338202, 4676404, 5845505, 11691010, 23382020, 36242131, 72484262, 144968524, 181210655, 362421310, 724842620]

約数ペア:

[(1, 724842620), (2, 362421310), (4, 181210655), (5, 144968524), (10, 72484262), (20, 36242131), (31, 23382020), (62, 11691010), (124, 5845505), (155, 4676404), (310, 2338202), (541, 1339820), (620, 1169101), (1082, 669910), (2161, 335420), (2164, 334955), (2705, 267964), (4322, 167710), (5410, 133982), (8644, 83855), (10805, 67084), (10820, 66991), (16771, 43220), (21610, 33542)]