21944720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:432

約数の個数: 80

約数和(自身を含む): 58924800

約数和(自身を除く): 36980080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 263, 280, 298, 526, 560, 596, 745, 1043, 1052, 1192, 1315, 1490, 1841, 2086, 2104, 2384, 2630, 2980, 3682, 4172, 4208, 5215, 5260, 5960, 7364, 8344, 9205, 10430, 10520, 11920, 14728, 16688, 18410, 20860, 21040, 29456, 36820, 39187, 41720, 73640, 78374, 83440, 147280, 156748, 195935, 274309, 313496, 391870, 548618, 626992, 783740, 1097236, 1371545, 1567480, 2194472, 2743090, 3134960, 4388944, 5486180, 10972360, 21944720]

約数ペア:

[(1, 21944720), (2, 10972360), (4, 5486180), (5, 4388944), (7, 3134960), (8, 2743090), (10, 2194472), (14, 1567480), (16, 1371545), (20, 1097236), (28, 783740), (35, 626992), (40, 548618), (56, 391870), (70, 313496), (80, 274309), (112, 195935), (140, 156748), (149, 147280), (263, 83440), (280, 78374), (298, 73640), (526, 41720), (560, 39187), (596, 36820), (745, 29456), (1043, 21040), (1052, 20860), (1192, 18410), (1315, 16688), (1490, 14728), (1841, 11920), (2086, 10520), (2104, 10430), (2384, 9205), (2630, 8344), (2980, 7364), (3682, 5960), (4172, 5260), (4208, 5215)]