209780360

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{98953}}^1$

素因数の和:99017

約数の個数: 32

約数和(自身を含む): 480916440

約数和(自身を除く): 271136080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 98953, 197906, 395812, 494765, 791624, 989530, 1979060, 3958120, 5244509, 10489018, 20978036, 26222545, 41956072, 52445090, 104890180, 209780360]

約数ペア:

[(1, 209780360), (2, 104890180), (4, 52445090), (5, 41956072), (8, 26222545), (10, 20978036), (20, 10489018), (40, 5244509), (53, 3958120), (106, 1979060), (212, 989530), (265, 791624), (424, 494765), (530, 395812), (1060, 197906), (2120, 98953)]