71648260

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 153941760

約数和(自身を除く): 82293500

約数列:

[1, 2, 4, 5, 10, 20, 79, 137, 158, 274, 316, 331, 395, 548, 662, 685, 790, 1324, 1370, 1580, 1655, 2740, 3310, 6620, 10823, 21646, 26149, 43292, 45347, 52298, 54115, 90694, 104596, 108230, 130745, 181388, 216460, 226735, 261490, 453470, 522980, 906940, 3582413, 7164826, 14329652, 17912065, 35824130, 71648260]

約数ペア:

[(1, 71648260), (2, 35824130), (4, 17912065), (5, 14329652), (10, 7164826), (20, 3582413), (79, 906940), (137, 522980), (158, 453470), (274, 261490), (316, 226735), (331, 216460), (395, 181388), (548, 130745), (662, 108230), (685, 104596), (790, 90694), (1324, 54115), (1370, 52298), (1580, 45347), (1655, 43292), (2740, 26149), (3310, 21646), (6620, 10823)]