1277883760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{840713}}^1$

素因数の和:840745

約数の個数: 40

約数和(自身を含む): 3127456080

約数和(自身を除く): 1849572320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 840713, 1681426, 3362852, 4203565, 6725704, 8407130, 13451408, 15973547, 16814260, 31947094, 33628520, 63894188, 67257040, 79867735, 127788376, 159735470, 255576752, 319470940, 638941880, 1277883760]

約数ペア:

[(1, 1277883760), (2, 638941880), (4, 319470940), (5, 255576752), (8, 159735470), (10, 127788376), (16, 79867735), (19, 67257040), (20, 63894188), (38, 33628520), (40, 31947094), (76, 16814260), (80, 15973547), (95, 13451408), (152, 8407130), (190, 6725704), (304, 4203565), (380, 3362852), (760, 1681426), (1520, 840713)]