289908580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{25931}}^1$

素因数の和:25996

約数の個数: 48

約数和(自身を含む): 670912704

約数和(自身を除く): 381004124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 25931, 51862, 103724, 129655, 259310, 337103, 518620, 674206, 1115033, 1348412, 1685515, 2230066, 3371030, 4460132, 5575165, 6742060, 11150330, 14495429, 22300660, 28990858, 57981716, 72477145, 144954290, 289908580]

約数ペア:

[(1, 289908580), (2, 144954290), (4, 72477145), (5, 57981716), (10, 28990858), (13, 22300660), (20, 14495429), (26, 11150330), (43, 6742060), (52, 5575165), (65, 4460132), (86, 3371030), (130, 2230066), (172, 1685515), (215, 1348412), (260, 1115033), (430, 674206), (559, 518620), (860, 337103), (1118, 259310), (2236, 129655), (2795, 103724), (5590, 51862), (11180, 25931)]