203477360

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{12911}}^1$

素因数の和:13121

約数の個数: 40

約数和(自身を含む): 475523136

約数和(自身を除く): 272045776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 12911, 15760, 25822, 51644, 64555, 103288, 129110, 206576, 258220, 516440, 1032880, 2543467, 5086934, 10173868, 12717335, 20347736, 25434670, 40695472, 50869340, 101738680, 203477360]

約数ペア:

[(1, 203477360), (2, 101738680), (4, 50869340), (5, 40695472), (8, 25434670), (10, 20347736), (16, 12717335), (20, 10173868), (40, 5086934), (80, 2543467), (197, 1032880), (394, 516440), (788, 258220), (985, 206576), (1576, 129110), (1970, 103288), (3152, 64555), (3940, 51644), (7880, 25822), (12911, 15760)]