420379840

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1367}}^1$

素因数の和:1446

約数の個数: 84

約数和(自身を含む): 1035119088

約数和(自身を除く): 614739248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 961, 992, 1240, 1367, 1922, 1984, 2480, 2734, 3844, 4805, 4960, 5468, 6835, 7688, 9610, 9920, 10936, 13670, 15376, 19220, 21872, 27340, 30752, 38440, 42377, 43744, 54680, 61504, 76880, 84754, 87488, 109360, 153760, 169508, 211885, 218720, 307520, 339016, 423770, 437440, 678032, 847540, 1313687, 1356064, 1695080, 2627374, 2712128, 3390160, 5254748, 6568435, 6780320, 10509496, 13136870, 13560640, 21018992, 26273740, 42037984, 52547480, 84075968, 105094960, 210189920, 420379840]

約数ペア:

[(1, 420379840), (2, 210189920), (4, 105094960), (5, 84075968), (8, 52547480), (10, 42037984), (16, 26273740), (20, 21018992), (31, 13560640), (32, 13136870), (40, 10509496), (62, 6780320), (64, 6568435), (80, 5254748), (124, 3390160), (155, 2712128), (160, 2627374), (248, 1695080), (310, 1356064), (320, 1313687), (496, 847540), (620, 678032), (961, 437440), (992, 423770), (1240, 339016), (1367, 307520), (1922, 218720), (1984, 211885), (2480, 169508), (2734, 153760), (3844, 109360), (4805, 87488), (4960, 84754), (5468, 76880), (6835, 61504), (7688, 54680), (9610, 43744), (9920, 42377), (10936, 38440), (13670, 30752), (15376, 27340), (19220, 21872)]