20497600

素因数分解:

$2^6\times 5^2\times {\mathrm{23}}^1\times {\mathrm{557}}^1$

素因数の和:602

約数の個数: 84

約数和(自身を含む): 52724304

約数和(自身を除く): 32226704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 160, 184, 200, 230, 320, 368, 400, 460, 557, 575, 736, 800, 920, 1114, 1150, 1472, 1600, 1840, 2228, 2300, 2785, 3680, 4456, 4600, 5570, 7360, 8912, 9200, 11140, 12811, 13925, 17824, 18400, 22280, 25622, 27850, 35648, 36800, 44560, 51244, 55700, 64055, 89120, 102488, 111400, 128110, 178240, 204976, 222800, 256220, 320275, 409952, 445600, 512440, 640550, 819904, 891200, 1024880, 1281100, 2049760, 2562200, 4099520, 5124400, 10248800, 20497600]

約数ペア:

[(1, 20497600), (2, 10248800), (4, 5124400), (5, 4099520), (8, 2562200), (10, 2049760), (16, 1281100), (20, 1024880), (23, 891200), (25, 819904), (32, 640550), (40, 512440), (46, 445600), (50, 409952), (64, 320275), (80, 256220), (92, 222800), (100, 204976), (115, 178240), (160, 128110), (184, 111400), (200, 102488), (230, 89120), (320, 64055), (368, 55700), (400, 51244), (460, 44560), (557, 36800), (575, 35648), (736, 27850), (800, 25622), (920, 22280), (1114, 18400), (1150, 17824), (1472, 13925), (1600, 12811), (1840, 11140), (2228, 9200), (2300, 8912), (2785, 7360), (3680, 5570), (4456, 4600)]