18609760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1$

素因数の和:440

約数の個数: 96

約数和(自身を含む): 49533120

約数和(自身を除く): 30923360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 115, 130, 160, 184, 208, 230, 260, 299, 368, 389, 416, 460, 520, 598, 736, 778, 920, 1040, 1196, 1495, 1556, 1840, 1945, 2080, 2392, 2990, 3112, 3680, 3890, 4784, 5057, 5980, 6224, 7780, 8947, 9568, 10114, 11960, 12448, 15560, 17894, 20228, 23920, 25285, 31120, 35788, 40456, 44735, 47840, 50570, 62240, 71576, 80912, 89470, 101140, 116311, 143152, 161824, 178940, 202280, 232622, 286304, 357880, 404560, 465244, 581555, 715760, 809120, 930488, 1163110, 1431520, 1860976, 2326220, 3721952, 4652440, 9304880, 18609760]

約数ペア:

[(1, 18609760), (2, 9304880), (4, 4652440), (5, 3721952), (8, 2326220), (10, 1860976), (13, 1431520), (16, 1163110), (20, 930488), (23, 809120), (26, 715760), (32, 581555), (40, 465244), (46, 404560), (52, 357880), (65, 286304), (80, 232622), (92, 202280), (104, 178940), (115, 161824), (130, 143152), (160, 116311), (184, 101140), (208, 89470), (230, 80912), (260, 71576), (299, 62240), (368, 50570), (389, 47840), (416, 44735), (460, 40456), (520, 35788), (598, 31120), (736, 25285), (778, 23920), (920, 20228), (1040, 17894), (1196, 15560), (1495, 12448), (1556, 11960), (1840, 10114), (1945, 9568), (2080, 8947), (2392, 7780), (2990, 6224), (3112, 5980), (3680, 5057), (3890, 4784)]