67656780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{919}}^1$

素因数の和:1343

約数の個数: 72

約数和(自身を含む): 205951200

約数和(自身を除く): 138294420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 409, 818, 919, 1227, 1636, 1838, 2045, 2454, 2757, 3676, 3681, 4090, 4595, 4908, 5514, 6135, 7362, 8180, 8271, 9190, 11028, 12270, 13785, 14724, 16542, 18380, 18405, 24540, 27570, 33084, 36810, 41355, 55140, 73620, 82710, 165420, 375871, 751742, 1127613, 1503484, 1879355, 2255226, 3382839, 3758710, 4510452, 5638065, 6765678, 7517420, 11276130, 13531356, 16914195, 22552260, 33828390, 67656780]

約数ペア:

[(1, 67656780), (2, 33828390), (3, 22552260), (4, 16914195), (5, 13531356), (6, 11276130), (9, 7517420), (10, 6765678), (12, 5638065), (15, 4510452), (18, 3758710), (20, 3382839), (30, 2255226), (36, 1879355), (45, 1503484), (60, 1127613), (90, 751742), (180, 375871), (409, 165420), (818, 82710), (919, 73620), (1227, 55140), (1636, 41355), (1838, 36810), (2045, 33084), (2454, 27570), (2757, 24540), (3676, 18405), (3681, 18380), (4090, 16542), (4595, 14724), (4908, 13785), (5514, 12270), (6135, 11028), (7362, 9190), (8180, 8271)]