20372800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:153

約数の個数: 168

約数和(自身を含む): 61228224

約数和(自身を除く): 40855424

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 25, 28, 32, 34, 35, 40, 50, 56, 64, 68, 70, 80, 85, 100, 107, 112, 119, 136, 140, 160, 170, 175, 200, 214, 224, 238, 272, 280, 320, 340, 350, 400, 425, 428, 448, 476, 535, 544, 560, 595, 680, 700, 749, 800, 850, 856, 952, 1070, 1088, 1120, 1190, 1360, 1400, 1498, 1600, 1700, 1712, 1819, 1904, 2140, 2240, 2380, 2675, 2720, 2800, 2975, 2996, 3400, 3424, 3638, 3745, 3808, 4280, 4760, 5350, 5440, 5600, 5950, 5992, 6800, 6848, 7276, 7490, 7616, 8560, 9095, 9520, 10700, 11200, 11900, 11984, 12733, 13600, 14552, 14980, 17120, 18190, 18725, 19040, 21400, 23800, 23968, 25466, 27200, 29104, 29960, 34240, 36380, 37450, 38080, 42800, 45475, 47600, 47936, 50932, 58208, 59920, 63665, 72760, 74900, 85600, 90950, 95200, 101864, 116416, 119840, 127330, 145520, 149800, 171200, 181900, 190400, 203728, 239680, 254660, 291040, 299600, 318325, 363800, 407456, 509320, 582080, 599200, 636650, 727600, 814912, 1018640, 1198400, 1273300, 1455200, 2037280, 2546600, 2910400, 4074560, 5093200, 10186400, 20372800]

約数ペア:

[(1, 20372800), (2, 10186400), (4, 5093200), (5, 4074560), (7, 2910400), (8, 2546600), (10, 2037280), (14, 1455200), (16, 1273300), (17, 1198400), (20, 1018640), (25, 814912), (28, 727600), (32, 636650), (34, 599200), (35, 582080), (40, 509320), (50, 407456), (56, 363800), (64, 318325), (68, 299600), (70, 291040), (80, 254660), (85, 239680), (100, 203728), (107, 190400), (112, 181900), (119, 171200), (136, 149800), (140, 145520), (160, 127330), (170, 119840), (175, 116416), (200, 101864), (214, 95200), (224, 90950), (238, 85600), (272, 74900), (280, 72760), (320, 63665), (340, 59920), (350, 58208), (400, 50932), (425, 47936), (428, 47600), (448, 45475), (476, 42800), (535, 38080), (544, 37450), (560, 36380), (595, 34240), (680, 29960), (700, 29104), (749, 27200), (800, 25466), (850, 23968), (856, 23800), (952, 21400), (1070, 19040), (1088, 18725), (1120, 18190), (1190, 17120), (1360, 14980), (1400, 14552), (1498, 13600), (1600, 12733), (1700, 11984), (1712, 11900), (1819, 11200), (1904, 10700), (2140, 9520), (2240, 9095), (2380, 8560), (2675, 7616), (2720, 7490), (2800, 7276), (2975, 6848), (2996, 6800), (3400, 5992), (3424, 5950), (3638, 5600), (3745, 5440), (3808, 5350), (4280, 4760)]