20375760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1163}}^1$

素因数の和:1252

約数の個数: 80

約数和(自身を含む): 64085184

約数和(自身を除く): 43709424

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 73, 80, 120, 146, 219, 240, 292, 365, 438, 584, 730, 876, 1095, 1163, 1168, 1460, 1752, 2190, 2326, 2920, 3489, 3504, 4380, 4652, 5815, 5840, 6978, 8760, 9304, 11630, 13956, 17445, 17520, 18608, 23260, 27912, 34890, 46520, 55824, 69780, 84899, 93040, 139560, 169798, 254697, 279120, 339596, 424495, 509394, 679192, 848990, 1018788, 1273485, 1358384, 1697980, 2037576, 2546970, 3395960, 4075152, 5093940, 6791920, 10187880, 20375760]

約数ペア:

[(1, 20375760), (2, 10187880), (3, 6791920), (4, 5093940), (5, 4075152), (6, 3395960), (8, 2546970), (10, 2037576), (12, 1697980), (15, 1358384), (16, 1273485), (20, 1018788), (24, 848990), (30, 679192), (40, 509394), (48, 424495), (60, 339596), (73, 279120), (80, 254697), (120, 169798), (146, 139560), (219, 93040), (240, 84899), (292, 69780), (365, 55824), (438, 46520), (584, 34890), (730, 27912), (876, 23260), (1095, 18608), (1163, 17520), (1168, 17445), (1460, 13956), (1752, 11630), (2190, 9304), (2326, 8760), (2920, 6978), (3489, 5840), (3504, 5815), (4380, 4652)]