19550920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 27105080

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 79, 92, 115, 158, 184, 230, 269, 316, 395, 460, 538, 632, 790, 920, 1076, 1345, 1580, 1817, 2152, 2690, 3160, 3634, 5380, 6187, 7268, 9085, 10760, 12374, 14536, 18170, 21251, 24748, 30935, 36340, 42502, 49496, 61870, 72680, 85004, 106255, 123740, 170008, 212510, 247480, 425020, 488773, 850040, 977546, 1955092, 2443865, 3910184, 4887730, 9775460, 19550920]

約数ペア:

[(1, 19550920), (2, 9775460), (4, 4887730), (5, 3910184), (8, 2443865), (10, 1955092), (20, 977546), (23, 850040), (40, 488773), (46, 425020), (79, 247480), (92, 212510), (115, 170008), (158, 123740), (184, 106255), (230, 85004), (269, 72680), (316, 61870), (395, 49496), (460, 42502), (538, 36340), (632, 30935), (790, 24748), (920, 21251), (1076, 18170), (1345, 14536), (1580, 12374), (1817, 10760), (2152, 9085), (2690, 7268), (3160, 6187), (3634, 5380)]