20093440

素因数分解:

$2^9\times 5^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:237

約数の個数: 80

約数和(自身を含む): 49496832

約数和(自身を除く): 29403392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 167, 188, 235, 256, 320, 334, 376, 470, 512, 640, 668, 752, 835, 940, 1280, 1336, 1504, 1670, 1880, 2560, 2672, 3008, 3340, 3760, 5344, 6016, 6680, 7520, 7849, 10688, 12032, 13360, 15040, 15698, 21376, 24064, 26720, 30080, 31396, 39245, 42752, 53440, 60160, 62792, 78490, 85504, 106880, 120320, 125584, 156980, 213760, 251168, 313960, 427520, 502336, 627920, 1004672, 1255840, 2009344, 2511680, 4018688, 5023360, 10046720, 20093440]

約数ペア:

[(1, 20093440), (2, 10046720), (4, 5023360), (5, 4018688), (8, 2511680), (10, 2009344), (16, 1255840), (20, 1004672), (32, 627920), (40, 502336), (47, 427520), (64, 313960), (80, 251168), (94, 213760), (128, 156980), (160, 125584), (167, 120320), (188, 106880), (235, 85504), (256, 78490), (320, 62792), (334, 60160), (376, 53440), (470, 42752), (512, 39245), (640, 31396), (668, 30080), (752, 26720), (835, 24064), (940, 21376), (1280, 15698), (1336, 15040), (1504, 13360), (1670, 12032), (1880, 10688), (2560, 7849), (2672, 7520), (3008, 6680), (3340, 6016), (3760, 5344)]