20474400

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:491

約数の個数: 144

約数和(自身を含む): 70308000

約数和(自身を除く): 49833600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 25, 30, 32, 38, 40, 48, 50, 57, 60, 75, 76, 80, 95, 96, 100, 114, 120, 150, 152, 160, 190, 200, 228, 240, 285, 300, 304, 380, 400, 449, 456, 475, 480, 570, 600, 608, 760, 800, 898, 912, 950, 1140, 1200, 1347, 1425, 1520, 1796, 1824, 1900, 2245, 2280, 2400, 2694, 2850, 3040, 3592, 3800, 4490, 4560, 5388, 5700, 6735, 7184, 7600, 8531, 8980, 9120, 10776, 11225, 11400, 13470, 14368, 15200, 17062, 17960, 21552, 22450, 22800, 25593, 26940, 33675, 34124, 35920, 42655, 43104, 44900, 45600, 51186, 53880, 67350, 68248, 71840, 85310, 89800, 102372, 107760, 127965, 134700, 136496, 170620, 179600, 204744, 213275, 215520, 255930, 269400, 272992, 341240, 359200, 409488, 426550, 511860, 538800, 639825, 682480, 818976, 853100, 1023720, 1077600, 1279650, 1364960, 1706200, 2047440, 2559300, 3412400, 4094880, 5118600, 6824800, 10237200, 20474400]

約数ペア:

[(1, 20474400), (2, 10237200), (3, 6824800), (4, 5118600), (5, 4094880), (6, 3412400), (8, 2559300), (10, 2047440), (12, 1706200), (15, 1364960), (16, 1279650), (19, 1077600), (20, 1023720), (24, 853100), (25, 818976), (30, 682480), (32, 639825), (38, 538800), (40, 511860), (48, 426550), (50, 409488), (57, 359200), (60, 341240), (75, 272992), (76, 269400), (80, 255930), (95, 215520), (96, 213275), (100, 204744), (114, 179600), (120, 170620), (150, 136496), (152, 134700), (160, 127965), (190, 107760), (200, 102372), (228, 89800), (240, 85310), (285, 71840), (300, 68248), (304, 67350), (380, 53880), (400, 51186), (449, 45600), (456, 44900), (475, 43104), (480, 42655), (570, 35920), (600, 34124), (608, 33675), (760, 26940), (800, 25593), (898, 22800), (912, 22450), (950, 21552), (1140, 17960), (1200, 17062), (1347, 15200), (1425, 14368), (1520, 13470), (1796, 11400), (1824, 11225), (1900, 10776), (2245, 9120), (2280, 8980), (2400, 8531), (2694, 7600), (2850, 7184), (3040, 6735), (3592, 5700), (3800, 5388), (4490, 4560)]