1221190580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{123853}}^1$

素因数の和:123908

約数の個数: 48

約数和(自身を含む): 2809008720

約数和(自身を除く): 1587818140

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2465, 4930, 9860, 123853, 247706, 495412, 619265, 1238530, 2105501, 2477060, 3591737, 4211002, 7183474, 8422004, 10527505, 14366948, 17958685, 21055010, 35917370, 42110020, 61059529, 71834740, 122119058, 244238116, 305297645, 610595290, 1221190580]

約数ペア:

[(1, 1221190580), (2, 610595290), (4, 305297645), (5, 244238116), (10, 122119058), (17, 71834740), (20, 61059529), (29, 42110020), (34, 35917370), (58, 21055010), (68, 17958685), (85, 14366948), (116, 10527505), (145, 8422004), (170, 7183474), (290, 4211002), (340, 3591737), (493, 2477060), (580, 2105501), (986, 1238530), (1972, 619265), (2465, 495412), (4930, 247706), (9860, 123853)]