18784960

素因数分解:

$2^6\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1249}}^1$

素因数の和:1313

約数の個数: 56

約数和(自身を含む): 45720000

約数和(自身を除く): 26935040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 160, 188, 235, 320, 376, 470, 752, 940, 1249, 1504, 1880, 2498, 3008, 3760, 4996, 6245, 7520, 9992, 12490, 15040, 19984, 24980, 39968, 49960, 58703, 79936, 99920, 117406, 199840, 234812, 293515, 399680, 469624, 587030, 939248, 1174060, 1878496, 2348120, 3756992, 4696240, 9392480, 18784960]

約数ペア:

[(1, 18784960), (2, 9392480), (4, 4696240), (5, 3756992), (8, 2348120), (10, 1878496), (16, 1174060), (20, 939248), (32, 587030), (40, 469624), (47, 399680), (64, 293515), (80, 234812), (94, 199840), (160, 117406), (188, 99920), (235, 79936), (320, 58703), (376, 49960), (470, 39968), (752, 24980), (940, 19984), (1249, 15040), (1504, 12490), (1880, 9992), (2498, 7520), (3008, 6245), (3760, 4996)]