20859620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 46182528

約数和(自身を除く): 25322908

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 137, 230, 274, 331, 460, 548, 662, 685, 1324, 1370, 1655, 2740, 3151, 3310, 6302, 6620, 7613, 12604, 15226, 15755, 30452, 31510, 38065, 45347, 63020, 76130, 90694, 152260, 181388, 226735, 453470, 906940, 1042981, 2085962, 4171924, 5214905, 10429810, 20859620]

約数ペア:

[(1, 20859620), (2, 10429810), (4, 5214905), (5, 4171924), (10, 2085962), (20, 1042981), (23, 906940), (46, 453470), (92, 226735), (115, 181388), (137, 152260), (230, 90694), (274, 76130), (331, 63020), (460, 45347), (548, 38065), (662, 31510), (685, 30452), (1324, 15755), (1370, 15226), (1655, 12604), (2740, 7613), (3151, 6620), (3310, 6302)]