289386940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{3061}}^1$

素因数の和:3262

約数の個数: 48

約数和(自身を含む): 632731680

約数和(自身を除く): 343344740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 163, 290, 326, 580, 652, 815, 1630, 3061, 3260, 4727, 6122, 9454, 12244, 15305, 18908, 23635, 30610, 47270, 61220, 88769, 94540, 177538, 355076, 443845, 498943, 887690, 997886, 1775380, 1995772, 2494715, 4989430, 9978860, 14469347, 28938694, 57877388, 72346735, 144693470, 289386940]

約数ペア:

[(1, 289386940), (2, 144693470), (4, 72346735), (5, 57877388), (10, 28938694), (20, 14469347), (29, 9978860), (58, 4989430), (116, 2494715), (145, 1995772), (163, 1775380), (290, 997886), (326, 887690), (580, 498943), (652, 443845), (815, 355076), (1630, 177538), (3061, 94540), (3260, 88769), (4727, 61220), (6122, 47270), (9454, 30610), (12244, 23635), (15305, 18908)]