71296020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{919}}^1$

素因数の和:1365

約数の個数: 72

約数和(自身を含む): 217002240

約数和(自身を除く): 145706220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 431, 862, 919, 1293, 1724, 1838, 2155, 2586, 2757, 3676, 3879, 4310, 4595, 5172, 5514, 6465, 7758, 8271, 8620, 9190, 11028, 12930, 13785, 15516, 16542, 18380, 19395, 25860, 27570, 33084, 38790, 41355, 55140, 77580, 82710, 165420, 396089, 792178, 1188267, 1584356, 1980445, 2376534, 3564801, 3960890, 4753068, 5941335, 7129602, 7921780, 11882670, 14259204, 17824005, 23765340, 35648010, 71296020]

約数ペア:

[(1, 71296020), (2, 35648010), (3, 23765340), (4, 17824005), (5, 14259204), (6, 11882670), (9, 7921780), (10, 7129602), (12, 5941335), (15, 4753068), (18, 3960890), (20, 3564801), (30, 2376534), (36, 1980445), (45, 1584356), (60, 1188267), (90, 792178), (180, 396089), (431, 165420), (862, 82710), (919, 77580), (1293, 55140), (1724, 41355), (1838, 38790), (2155, 33084), (2586, 27570), (2757, 25860), (3676, 19395), (3879, 18380), (4310, 16542), (4595, 15516), (5172, 13785), (5514, 12930), (6465, 11028), (7758, 9190), (8271, 8620)]