389118640

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{2797}}^1$

素因数の和:2894

約数の個数: 80

約数和(自身を含む): 949260672

約数和(自身を除く): 560142032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 47, 74, 80, 94, 148, 185, 188, 235, 296, 370, 376, 470, 592, 740, 752, 940, 1480, 1739, 1880, 2797, 2960, 3478, 3760, 5594, 6956, 8695, 11188, 13912, 13985, 17390, 22376, 27824, 27970, 34780, 44752, 55940, 69560, 103489, 111880, 131459, 139120, 206978, 223760, 262918, 413956, 517445, 525836, 657295, 827912, 1034890, 1051672, 1314590, 1655824, 2069780, 2103344, 2629180, 4139560, 4863983, 5258360, 8279120, 9727966, 10516720, 19455932, 24319915, 38911864, 48639830, 77823728, 97279660, 194559320, 389118640]

約数ペア:

[(1, 389118640), (2, 194559320), (4, 97279660), (5, 77823728), (8, 48639830), (10, 38911864), (16, 24319915), (20, 19455932), (37, 10516720), (40, 9727966), (47, 8279120), (74, 5258360), (80, 4863983), (94, 4139560), (148, 2629180), (185, 2103344), (188, 2069780), (235, 1655824), (296, 1314590), (370, 1051672), (376, 1034890), (470, 827912), (592, 657295), (740, 525836), (752, 517445), (940, 413956), (1480, 262918), (1739, 223760), (1880, 206978), (2797, 139120), (2960, 131459), (3478, 111880), (3760, 103489), (5594, 69560), (6956, 55940), (8695, 44752), (11188, 34780), (13912, 27970), (13985, 27824), (17390, 22376)]