389750450

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^2\times {\mathrm{1249}}^1$

素因数の和:1419

約数の個数: 36

約数和(自身を含む): 734816250

約数和(自身を除く): 345065800

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1249, 1975, 2498, 3950, 6241, 6245, 12482, 12490, 31205, 31225, 62410, 62450, 98671, 156025, 197342, 312050, 493355, 986710, 2466775, 4933550, 7795009, 15590018, 38975045, 77950090, 194875225, 389750450]

約数ペア:

[(1, 389750450), (2, 194875225), (5, 77950090), (10, 38975045), (25, 15590018), (50, 7795009), (79, 4933550), (158, 2466775), (395, 986710), (790, 493355), (1249, 312050), (1975, 197342), (2498, 156025), (3950, 98671), (6241, 62450), (6245, 62410), (12482, 31225), (12490, 31205)]