19770120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{54917}}^1$

素因数の和:54934

約数の個数: 48

約数和(自身を含む): 64254060

約数和(自身を除く): 44483940

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 54917, 109834, 164751, 219668, 274585, 329502, 439336, 494253, 549170, 659004, 823755, 988506, 1098340, 1318008, 1647510, 1977012, 2196680, 2471265, 3295020, 3954024, 4942530, 6590040, 9885060, 19770120]

約数ペア:

[(1, 19770120), (2, 9885060), (3, 6590040), (4, 4942530), (5, 3954024), (6, 3295020), (8, 2471265), (9, 2196680), (10, 1977012), (12, 1647510), (15, 1318008), (18, 1098340), (20, 988506), (24, 823755), (30, 659004), (36, 549170), (40, 494253), (45, 439336), (60, 329502), (72, 274585), (90, 219668), (120, 164751), (180, 109834), (360, 54917)]