200019970

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1\times {\mathrm{853}}^1$

素因数の和:1170

約数の個数: 32

約数和(自身を含む): 365238720

約数和(自身を除く): 165218750

約数列:

[1, 2, 5, 10, 131, 179, 262, 358, 655, 853, 895, 1310, 1706, 1790, 4265, 8530, 23449, 46898, 111743, 117245, 152687, 223486, 234490, 305374, 558715, 763435, 1117430, 1526870, 20001997, 40003994, 100009985, 200019970]

約数ペア:

[(1, 200019970), (2, 100009985), (5, 40003994), (10, 20001997), (131, 1526870), (179, 1117430), (262, 763435), (358, 558715), (655, 305374), (853, 234490), (895, 223486), (1310, 152687), (1706, 117245), (1790, 111743), (4265, 46898), (8530, 23449)]