256068220

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1\times {\mathrm{823}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 551513088

約数和(自身を除く): 295444868

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 331, 470, 662, 823, 940, 1324, 1646, 1655, 3292, 3310, 4115, 6620, 8230, 15557, 16460, 31114, 38681, 62228, 77362, 77785, 154724, 155570, 193405, 272413, 311140, 386810, 544826, 773620, 1089652, 1362065, 2724130, 5448260, 12803411, 25606822, 51213644, 64017055, 128034110, 256068220]

約数ペア:

[(1, 256068220), (2, 128034110), (4, 64017055), (5, 51213644), (10, 25606822), (20, 12803411), (47, 5448260), (94, 2724130), (188, 1362065), (235, 1089652), (331, 773620), (470, 544826), (662, 386810), (823, 311140), (940, 272413), (1324, 193405), (1646, 155570), (1655, 154724), (3292, 77785), (3310, 77362), (4115, 62228), (6620, 38681), (8230, 31114), (15557, 16460)]