205020050

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{349}}^1\times {\mathrm{379}}^1$

素因数の和:771

約数の個数: 48

約数和(自身を含む): 395808000

約数和(自身を除く): 190787950

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 349, 379, 698, 758, 775, 1550, 1745, 1895, 3490, 3790, 8725, 9475, 10819, 11749, 17450, 18950, 21638, 23498, 54095, 58745, 108190, 117490, 132271, 264542, 270475, 293725, 540950, 587450, 661355, 1322710, 3306775, 4100401, 6613550, 8200802, 20502005, 41004010, 102510025, 205020050]

約数ペア:

[(1, 205020050), (2, 102510025), (5, 41004010), (10, 20502005), (25, 8200802), (31, 6613550), (50, 4100401), (62, 3306775), (155, 1322710), (310, 661355), (349, 587450), (379, 540950), (698, 293725), (758, 270475), (775, 264542), (1550, 132271), (1745, 117490), (1895, 108190), (3490, 58745), (3790, 54095), (8725, 23498), (9475, 21638), (10819, 18950), (11749, 17450)]