20580720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2957}}^1$

素因数の和:3002

約数の個数: 80

約数和(自身を含む): 66022560

約数和(自身を除く): 45441840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 174, 232, 240, 290, 348, 435, 464, 580, 696, 870, 1160, 1392, 1740, 2320, 2957, 3480, 5914, 6960, 8871, 11828, 14785, 17742, 23656, 29570, 35484, 44355, 47312, 59140, 70968, 85753, 88710, 118280, 141936, 171506, 177420, 236560, 257259, 343012, 354840, 428765, 514518, 686024, 709680, 857530, 1029036, 1286295, 1372048, 1715060, 2058072, 2572590, 3430120, 4116144, 5145180, 6860240, 10290360, 20580720]

約数ペア:

[(1, 20580720), (2, 10290360), (3, 6860240), (4, 5145180), (5, 4116144), (6, 3430120), (8, 2572590), (10, 2058072), (12, 1715060), (15, 1372048), (16, 1286295), (20, 1029036), (24, 857530), (29, 709680), (30, 686024), (40, 514518), (48, 428765), (58, 354840), (60, 343012), (80, 257259), (87, 236560), (116, 177420), (120, 171506), (145, 141936), (174, 118280), (232, 88710), (240, 85753), (290, 70968), (348, 59140), (435, 47312), (464, 44355), (580, 35484), (696, 29570), (870, 23656), (1160, 17742), (1392, 14785), (1740, 11828), (2320, 8871), (2957, 6960), (3480, 5914)]