51291120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{213713}}^1$

素因数の和:213729

約数の個数: 40

約数和(自身を含む): 159003216

約数和(自身を除く): 107712096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 213713, 427426, 641139, 854852, 1068565, 1282278, 1709704, 2137130, 2564556, 3205695, 3419408, 4274260, 5129112, 6411390, 8548520, 10258224, 12822780, 17097040, 25645560, 51291120]

約数ペア:

[(1, 51291120), (2, 25645560), (3, 17097040), (4, 12822780), (5, 10258224), (6, 8548520), (8, 6411390), (10, 5129112), (12, 4274260), (15, 3419408), (16, 3205695), (20, 2564556), (24, 2137130), (30, 1709704), (40, 1282278), (48, 1068565), (60, 854852), (80, 641139), (120, 427426), (240, 213713)]