1290259160

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{2129}}^1$

素因数の和:2388

約数の個数: 64

約数和(自身を含む): 2952180000

約数和(自身を除く): 1661920840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 139, 218, 278, 436, 545, 556, 695, 872, 1090, 1112, 1390, 2129, 2180, 2780, 4258, 4360, 5560, 8516, 10645, 15151, 17032, 21290, 30302, 42580, 60604, 75755, 85160, 121208, 151510, 232061, 295931, 303020, 464122, 591862, 606040, 928244, 1160305, 1183724, 1479655, 1856488, 2320610, 2367448, 2959310, 4641220, 5918620, 9282440, 11837240, 32256479, 64512958, 129025916, 161282395, 258051832, 322564790, 645129580, 1290259160]

約数ペア:

[(1, 1290259160), (2, 645129580), (4, 322564790), (5, 258051832), (8, 161282395), (10, 129025916), (20, 64512958), (40, 32256479), (109, 11837240), (139, 9282440), (218, 5918620), (278, 4641220), (436, 2959310), (545, 2367448), (556, 2320610), (695, 1856488), (872, 1479655), (1090, 1183724), (1112, 1160305), (1390, 928244), (2129, 606040), (2180, 591862), (2780, 464122), (4258, 303020), (4360, 295931), (5560, 232061), (8516, 151510), (10645, 121208), (15151, 85160), (17032, 75755), (21290, 60604), (30302, 42580)]