1388895860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{19073}}^1$

素因数の和:19424

約数の個数: 48

約数和(自身を含む): 3191614272

約数和(自身を除く): 1802718412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 331, 662, 1324, 1655, 3310, 3641, 6620, 7282, 14564, 18205, 19073, 36410, 38146, 72820, 76292, 95365, 190730, 209803, 381460, 419606, 839212, 1049015, 2098030, 4196060, 6313163, 12626326, 25252652, 31565815, 63131630, 69444793, 126263260, 138889586, 277779172, 347223965, 694447930, 1388895860]

約数ペア:

[(1, 1388895860), (2, 694447930), (4, 347223965), (5, 277779172), (10, 138889586), (11, 126263260), (20, 69444793), (22, 63131630), (44, 31565815), (55, 25252652), (110, 12626326), (220, 6313163), (331, 4196060), (662, 2098030), (1324, 1049015), (1655, 839212), (3310, 419606), (3641, 381460), (6620, 209803), (7282, 190730), (14564, 95365), (18205, 76292), (19073, 72820), (36410, 38146)]