341728720

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:620

約数の個数: 80

約数和(自身を含む): 812448000

約数和(自身を除く): 470719280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 139, 158, 278, 316, 389, 395, 556, 632, 695, 778, 790, 1112, 1264, 1390, 1556, 1580, 1945, 2224, 2780, 3112, 3160, 3890, 5560, 6224, 6320, 7780, 10981, 11120, 15560, 21962, 30731, 31120, 43924, 54071, 54905, 61462, 87848, 108142, 109810, 122924, 153655, 175696, 216284, 219620, 245848, 270355, 307310, 432568, 439240, 491696, 540710, 614620, 865136, 878480, 1081420, 1229240, 2162840, 2458480, 4271609, 4325680, 8543218, 17086436, 21358045, 34172872, 42716090, 68345744, 85432180, 170864360, 341728720]

約数ペア:

[(1, 341728720), (2, 170864360), (4, 85432180), (5, 68345744), (8, 42716090), (10, 34172872), (16, 21358045), (20, 17086436), (40, 8543218), (79, 4325680), (80, 4271609), (139, 2458480), (158, 2162840), (278, 1229240), (316, 1081420), (389, 878480), (395, 865136), (556, 614620), (632, 540710), (695, 491696), (778, 439240), (790, 432568), (1112, 307310), (1264, 270355), (1390, 245848), (1556, 219620), (1580, 216284), (1945, 175696), (2224, 153655), (2780, 122924), (3112, 109810), (3160, 108142), (3890, 87848), (5560, 61462), (6224, 54905), (6320, 54071), (7780, 43924), (10981, 31120), (11120, 30731), (15560, 21962)]