18751880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{347}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 48608640

約数和(自身を除く): 29856760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 193, 280, 347, 386, 694, 772, 965, 1351, 1388, 1544, 1735, 1930, 2429, 2702, 2776, 3470, 3860, 4858, 5404, 6755, 6940, 7720, 9716, 10808, 12145, 13510, 13880, 19432, 24290, 27020, 48580, 54040, 66971, 97160, 133942, 267884, 334855, 468797, 535768, 669710, 937594, 1339420, 1875188, 2343985, 2678840, 3750376, 4687970, 9375940, 18751880]

約数ペア:

[(1, 18751880), (2, 9375940), (4, 4687970), (5, 3750376), (7, 2678840), (8, 2343985), (10, 1875188), (14, 1339420), (20, 937594), (28, 669710), (35, 535768), (40, 468797), (56, 334855), (70, 267884), (140, 133942), (193, 97160), (280, 66971), (347, 54040), (386, 48580), (694, 27020), (772, 24290), (965, 19432), (1351, 13880), (1388, 13510), (1544, 12145), (1735, 10808), (1930, 9716), (2429, 7720), (2702, 6940), (2776, 6755), (3470, 5404), (3860, 4858)]