20847490000

素因数分解:

$2^4\times 5^4\times {\mathrm{2084749}}^1$

素因数の和:2084777

約数の個数: 50

約数和(自身を含む): 50473882250

約数和(自身を除く): 29626392250

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 2084749, 4169498, 8338996, 10423745, 16677992, 20847490, 33355984, 41694980, 52118725, 83389960, 104237450, 166779920, 208474900, 260593625, 416949800, 521187250, 833899600, 1042374500, 1302968125, 2084749000, 2605936250, 4169498000, 5211872500, 10423745000, 20847490000]

約数ペア:

[(1, 20847490000), (2, 10423745000), (4, 5211872500), (5, 4169498000), (8, 2605936250), (10, 2084749000), (16, 1302968125), (20, 1042374500), (25, 833899600), (40, 521187250), (50, 416949800), (80, 260593625), (100, 208474900), (125, 166779920), (200, 104237450), (250, 83389960), (400, 52118725), (500, 41694980), (625, 33355984), (1000, 20847490), (1250, 16677992), (2000, 10423745), (2500, 8338996), (5000, 4169498), (10000, 2084749)]