311064660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2671}}^1$

素因数の和:3333

約数の個数: 72

約数和(自身を含む): 945374976

約数和(自身を除く): 634310316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 647, 1294, 1941, 2588, 2671, 3235, 3882, 5342, 5823, 6470, 7764, 8013, 9705, 10684, 11646, 12940, 13355, 16026, 19410, 23292, 24039, 26710, 29115, 32052, 38820, 40065, 48078, 53420, 58230, 80130, 96156, 116460, 120195, 160260, 240390, 480780, 1728137, 3456274, 5184411, 6912548, 8640685, 10368822, 15553233, 17281370, 20737644, 25922055, 31106466, 34562740, 51844110, 62212932, 77766165, 103688220, 155532330, 311064660]

約数ペア:

[(1, 311064660), (2, 155532330), (3, 103688220), (4, 77766165), (5, 62212932), (6, 51844110), (9, 34562740), (10, 31106466), (12, 25922055), (15, 20737644), (18, 17281370), (20, 15553233), (30, 10368822), (36, 8640685), (45, 6912548), (60, 5184411), (90, 3456274), (180, 1728137), (647, 480780), (1294, 240390), (1941, 160260), (2588, 120195), (2671, 116460), (3235, 96156), (3882, 80130), (5342, 58230), (5823, 53420), (6470, 48078), (7764, 40065), (8013, 38820), (9705, 32052), (10684, 29115), (11646, 26710), (12940, 24039), (13355, 23292), (16026, 19410)]