28345520

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{1033}}^1$

素因数の和:1067

約数の個数: 80

約数和(自身を含む): 76929600

約数和(自身を除く): 48584080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1033, 1372, 1715, 1960, 2066, 2744, 3430, 3920, 4132, 5165, 5488, 6860, 7231, 8264, 10330, 13720, 14462, 16528, 20660, 27440, 28924, 36155, 41320, 50617, 57848, 72310, 82640, 101234, 115696, 144620, 202468, 253085, 289240, 354319, 404936, 506170, 578480, 708638, 809872, 1012340, 1417276, 1771595, 2024680, 2834552, 3543190, 4049360, 5669104, 7086380, 14172760, 28345520]

約数ペア:

[(1, 28345520), (2, 14172760), (4, 7086380), (5, 5669104), (7, 4049360), (8, 3543190), (10, 2834552), (14, 2024680), (16, 1771595), (20, 1417276), (28, 1012340), (35, 809872), (40, 708638), (49, 578480), (56, 506170), (70, 404936), (80, 354319), (98, 289240), (112, 253085), (140, 202468), (196, 144620), (245, 115696), (280, 101234), (343, 82640), (392, 72310), (490, 57848), (560, 50617), (686, 41320), (784, 36155), (980, 28924), (1033, 27440), (1372, 20660), (1715, 16528), (1960, 14462), (2066, 13720), (2744, 10330), (3430, 8264), (3920, 7231), (4132, 6860), (5165, 5488)]