1278243920

素因数分解:

$2^4\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{15773}}^1$

素因数の和:16799

約数の個数: 40

約数和(自身を含む): 2975039496

約数和(自身を除く): 1696795576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1013, 2026, 4052, 5065, 8104, 10130, 15773, 16208, 20260, 31546, 40520, 63092, 78865, 81040, 126184, 157730, 252368, 315460, 630920, 1261840, 15978049, 31956098, 63912196, 79890245, 127824392, 159780490, 255648784, 319560980, 639121960, 1278243920]

約数ペア:

[(1, 1278243920), (2, 639121960), (4, 319560980), (5, 255648784), (8, 159780490), (10, 127824392), (16, 79890245), (20, 63912196), (40, 31956098), (80, 15978049), (1013, 1261840), (2026, 630920), (4052, 315460), (5065, 252368), (8104, 157730), (10130, 126184), (15773, 81040), (16208, 78865), (20260, 63092), (31546, 40520)]