40648720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2503}}^1$

素因数の和:2552

約数の個数: 80

約数和(自身を含む): 111778560

約数和(自身を除く): 71129840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 203, 232, 280, 290, 406, 464, 560, 580, 812, 1015, 1160, 1624, 2030, 2320, 2503, 3248, 4060, 5006, 8120, 10012, 12515, 16240, 17521, 20024, 25030, 35042, 40048, 50060, 70084, 72587, 87605, 100120, 140168, 145174, 175210, 200240, 280336, 290348, 350420, 362935, 508109, 580696, 700840, 725870, 1016218, 1161392, 1401680, 1451740, 2032436, 2540545, 2903480, 4064872, 5081090, 5806960, 8129744, 10162180, 20324360, 40648720]

約数ペア:

[(1, 40648720), (2, 20324360), (4, 10162180), (5, 8129744), (7, 5806960), (8, 5081090), (10, 4064872), (14, 2903480), (16, 2540545), (20, 2032436), (28, 1451740), (29, 1401680), (35, 1161392), (40, 1016218), (56, 725870), (58, 700840), (70, 580696), (80, 508109), (112, 362935), (116, 350420), (140, 290348), (145, 280336), (203, 200240), (232, 175210), (280, 145174), (290, 140168), (406, 100120), (464, 87605), (560, 72587), (580, 70084), (812, 50060), (1015, 40048), (1160, 35042), (1624, 25030), (2030, 20024), (2320, 17521), (2503, 16240), (3248, 12515), (4060, 10012), (5006, 8120)]