20123500

素因数分解:

$2^2\times 5^3\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 44396352

約数和(自身を除く): 24272852

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 167, 241, 250, 334, 482, 500, 668, 835, 964, 1205, 1670, 2410, 3340, 4175, 4820, 6025, 8350, 12050, 16700, 20875, 24100, 30125, 40247, 41750, 60250, 80494, 83500, 120500, 160988, 201235, 402470, 804940, 1006175, 2012350, 4024700, 5030875, 10061750, 20123500]

約数ペア:

[(1, 20123500), (2, 10061750), (4, 5030875), (5, 4024700), (10, 2012350), (20, 1006175), (25, 804940), (50, 402470), (100, 201235), (125, 160988), (167, 120500), (241, 83500), (250, 80494), (334, 60250), (482, 41750), (500, 40247), (668, 30125), (835, 24100), (964, 20875), (1205, 16700), (1670, 12050), (2410, 8350), (3340, 6025), (4175, 4820)]