20327400

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:536

約数の個数: 144

約数和(自身を含む): 71379360

約数和(自身を除く): 51051960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 25, 30, 36, 40, 45, 46, 50, 60, 69, 72, 75, 90, 92, 100, 115, 120, 138, 150, 180, 184, 200, 207, 225, 230, 276, 300, 345, 360, 414, 450, 460, 491, 552, 575, 600, 690, 828, 900, 920, 982, 1035, 1150, 1380, 1473, 1656, 1725, 1800, 1964, 2070, 2300, 2455, 2760, 2946, 3450, 3928, 4140, 4419, 4600, 4910, 5175, 5892, 6900, 7365, 8280, 8838, 9820, 10350, 11293, 11784, 12275, 13800, 14730, 17676, 19640, 20700, 22095, 22586, 24550, 29460, 33879, 35352, 36825, 41400, 44190, 45172, 49100, 56465, 58920, 67758, 73650, 88380, 90344, 98200, 101637, 110475, 112930, 135516, 147300, 169395, 176760, 203274, 220950, 225860, 271032, 282325, 294600, 338790, 406548, 441900, 451720, 508185, 564650, 677580, 813096, 846975, 883800, 1016370, 1129300, 1355160, 1693950, 2032740, 2258600, 2540925, 3387900, 4065480, 5081850, 6775800, 10163700, 20327400]

約数ペア:

[(1, 20327400), (2, 10163700), (3, 6775800), (4, 5081850), (5, 4065480), (6, 3387900), (8, 2540925), (9, 2258600), (10, 2032740), (12, 1693950), (15, 1355160), (18, 1129300), (20, 1016370), (23, 883800), (24, 846975), (25, 813096), (30, 677580), (36, 564650), (40, 508185), (45, 451720), (46, 441900), (50, 406548), (60, 338790), (69, 294600), (72, 282325), (75, 271032), (90, 225860), (92, 220950), (100, 203274), (115, 176760), (120, 169395), (138, 147300), (150, 135516), (180, 112930), (184, 110475), (200, 101637), (207, 98200), (225, 90344), (230, 88380), (276, 73650), (300, 67758), (345, 58920), (360, 56465), (414, 49100), (450, 45172), (460, 44190), (491, 41400), (552, 36825), (575, 35352), (600, 33879), (690, 29460), (828, 24550), (900, 22586), (920, 22095), (982, 20700), (1035, 19640), (1150, 17676), (1380, 14730), (1473, 13800), (1656, 12275), (1725, 11784), (1800, 11293), (1964, 10350), (2070, 9820), (2300, 8838), (2455, 8280), (2760, 7365), (2946, 6900), (3450, 5892), (3928, 5175), (4140, 4910), (4419, 4600)]