38936680

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:346

約数の個数: 64

約数和(自身を含む): 90720000

約数和(自身を除く): 51783320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 139, 149, 188, 235, 278, 298, 376, 470, 556, 596, 695, 745, 940, 1112, 1192, 1390, 1490, 1880, 2780, 2980, 5560, 5960, 6533, 7003, 13066, 14006, 20711, 26132, 28012, 32665, 35015, 41422, 52264, 56024, 65330, 70030, 82844, 103555, 130660, 140060, 165688, 207110, 261320, 280120, 414220, 828440, 973417, 1946834, 3893668, 4867085, 7787336, 9734170, 19468340, 38936680]

約数ペア:

[(1, 38936680), (2, 19468340), (4, 9734170), (5, 7787336), (8, 4867085), (10, 3893668), (20, 1946834), (40, 973417), (47, 828440), (94, 414220), (139, 280120), (149, 261320), (188, 207110), (235, 165688), (278, 140060), (298, 130660), (376, 103555), (470, 82844), (556, 70030), (596, 65330), (695, 56024), (745, 52264), (940, 41422), (1112, 35015), (1192, 32665), (1390, 28012), (1490, 26132), (1880, 20711), (2780, 14006), (2980, 13066), (5560, 7003), (5960, 6533)]