21175600

素因数分解:

$2^4\times 5^2\times {\mathrm{167}}^1\times {\mathrm{317}}^1$

素因数の和:502

約数の個数: 60

約数和(自身を含む): 51340464

約数和(自身を除く): 30164864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 167, 200, 317, 334, 400, 634, 668, 835, 1268, 1336, 1585, 1670, 2536, 2672, 3170, 3340, 4175, 5072, 6340, 6680, 7925, 8350, 12680, 13360, 15850, 16700, 25360, 31700, 33400, 52939, 63400, 66800, 105878, 126800, 211756, 264695, 423512, 529390, 847024, 1058780, 1323475, 2117560, 2646950, 4235120, 5293900, 10587800, 21175600]

約数ペア:

[(1, 21175600), (2, 10587800), (4, 5293900), (5, 4235120), (8, 2646950), (10, 2117560), (16, 1323475), (20, 1058780), (25, 847024), (40, 529390), (50, 423512), (80, 264695), (100, 211756), (167, 126800), (200, 105878), (317, 66800), (334, 63400), (400, 52939), (634, 33400), (668, 31700), (835, 25360), (1268, 16700), (1336, 15850), (1585, 13360), (1670, 12680), (2536, 8350), (2672, 7925), (3170, 6680), (3340, 6340), (4175, 5072)]