19737080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1447}}^1$

素因数の和:1500

約数の個数: 64

約数和(自身を含む): 50042880

約数和(自身を除く): 30305800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1447, 1705, 2728, 2894, 3410, 5788, 6820, 7235, 11576, 13640, 14470, 15917, 28940, 31834, 44857, 57880, 63668, 79585, 89714, 127336, 159170, 179428, 224285, 318340, 358856, 448570, 493427, 636680, 897140, 986854, 1794280, 1973708, 2467135, 3947416, 4934270, 9868540, 19737080]

約数ペア:

[(1, 19737080), (2, 9868540), (4, 4934270), (5, 3947416), (8, 2467135), (10, 1973708), (11, 1794280), (20, 986854), (22, 897140), (31, 636680), (40, 493427), (44, 448570), (55, 358856), (62, 318340), (88, 224285), (110, 179428), (124, 159170), (155, 127336), (220, 89714), (248, 79585), (310, 63668), (341, 57880), (440, 44857), (620, 31834), (682, 28940), (1240, 15917), (1364, 14470), (1447, 13640), (1705, 11576), (2728, 7235), (2894, 6820), (3410, 5788)]