2020720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:122

約数の個数: 80

約数和(自身を含む): 5312160

約数和(自身を除く): 3291440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 67, 80, 104, 116, 130, 134, 145, 208, 232, 260, 268, 290, 335, 377, 464, 520, 536, 580, 670, 754, 871, 1040, 1072, 1160, 1340, 1508, 1742, 1885, 1943, 2320, 2680, 3016, 3484, 3770, 3886, 4355, 5360, 6032, 6968, 7540, 7772, 8710, 9715, 13936, 15080, 15544, 17420, 19430, 25259, 30160, 31088, 34840, 38860, 50518, 69680, 77720, 101036, 126295, 155440, 202072, 252590, 404144, 505180, 1010360, 2020720]

約数ペア:

[(1, 2020720), (2, 1010360), (4, 505180), (5, 404144), (8, 252590), (10, 202072), (13, 155440), (16, 126295), (20, 101036), (26, 77720), (29, 69680), (40, 50518), (52, 38860), (58, 34840), (65, 31088), (67, 30160), (80, 25259), (104, 19430), (116, 17420), (130, 15544), (134, 15080), (145, 13936), (208, 9715), (232, 8710), (260, 7772), (268, 7540), (290, 6968), (335, 6032), (377, 5360), (464, 4355), (520, 3886), (536, 3770), (580, 3484), (670, 3016), (754, 2680), (871, 2320), (1040, 1943), (1072, 1885), (1160, 1742), (1340, 1508)]