21870800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:205

約数の個数: 120

約数和(自身を含む): 61442496

約数和(自身を除く): 39571696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 73, 80, 100, 107, 112, 140, 146, 175, 200, 214, 280, 292, 350, 365, 400, 428, 511, 535, 560, 584, 700, 730, 749, 856, 1022, 1070, 1168, 1400, 1460, 1498, 1712, 1825, 2044, 2140, 2555, 2675, 2800, 2920, 2996, 3650, 3745, 4088, 4280, 5110, 5350, 5840, 5992, 7300, 7490, 7811, 8176, 8560, 10220, 10700, 11984, 12775, 14600, 14980, 15622, 18725, 20440, 21400, 25550, 29200, 29960, 31244, 37450, 39055, 40880, 42800, 51100, 54677, 59920, 62488, 74900, 78110, 102200, 109354, 124976, 149800, 156220, 195275, 204400, 218708, 273385, 299600, 312440, 390550, 437416, 546770, 624880, 781100, 874832, 1093540, 1366925, 1562200, 2187080, 2733850, 3124400, 4374160, 5467700, 10935400, 21870800]

約数ペア:

[(1, 21870800), (2, 10935400), (4, 5467700), (5, 4374160), (7, 3124400), (8, 2733850), (10, 2187080), (14, 1562200), (16, 1366925), (20, 1093540), (25, 874832), (28, 781100), (35, 624880), (40, 546770), (50, 437416), (56, 390550), (70, 312440), (73, 299600), (80, 273385), (100, 218708), (107, 204400), (112, 195275), (140, 156220), (146, 149800), (175, 124976), (200, 109354), (214, 102200), (280, 78110), (292, 74900), (350, 62488), (365, 59920), (400, 54677), (428, 51100), (511, 42800), (535, 40880), (560, 39055), (584, 37450), (700, 31244), (730, 29960), (749, 29200), (856, 25550), (1022, 21400), (1070, 20440), (1168, 18725), (1400, 15622), (1460, 14980), (1498, 14600), (1712, 12775), (1825, 11984), (2044, 10700), (2140, 10220), (2555, 8560), (2675, 8176), (2800, 7811), (2920, 7490), (2996, 7300), (3650, 5992), (3745, 5840), (4088, 5350), (4280, 5110)]