820041240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{401981}}^1$

素因数の和:402012

約数の個数: 64

約数和(自身を含む): 2604843360

約数和(自身を除く): 1784802120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 401981, 803962, 1205943, 1607924, 2009905, 2411886, 3215848, 4019810, 4823772, 6029715, 6833677, 8039620, 9647544, 12059430, 13667354, 16079240, 20501031, 24118860, 27334708, 34168385, 41002062, 48237720, 54669416, 68336770, 82004124, 102505155, 136673540, 164008248, 205010310, 273347080, 410020620, 820041240]

約数ペア:

[(1, 820041240), (2, 410020620), (3, 273347080), (4, 205010310), (5, 164008248), (6, 136673540), (8, 102505155), (10, 82004124), (12, 68336770), (15, 54669416), (17, 48237720), (20, 41002062), (24, 34168385), (30, 27334708), (34, 24118860), (40, 20501031), (51, 16079240), (60, 13667354), (68, 12059430), (85, 9647544), (102, 8039620), (120, 6833677), (136, 6029715), (170, 4823772), (204, 4019810), (255, 3215848), (340, 2411886), (408, 2009905), (510, 1607924), (680, 1205943), (1020, 803962), (2040, 401981)]