56487855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 102643200

約数和(自身を除く): 46155345

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 89, 95, 131, 255, 267, 285, 323, 393, 445, 655, 969, 1335, 1513, 1615, 1691, 1965, 2227, 2489, 4539, 4845, 5073, 6681, 7467, 7565, 8455, 11135, 11659, 12445, 22695, 25365, 28747, 33405, 34977, 37335, 42313, 58295, 86241, 126939, 143735, 174885, 198203, 211565, 221521, 431205, 594609, 634695, 664563, 991015, 1107605, 2973045, 3322815, 3765857, 11297571, 18829285, 56487855]

約数ペア:

[(1, 56487855), (3, 18829285), (5, 11297571), (15, 3765857), (17, 3322815), (19, 2973045), (51, 1107605), (57, 991015), (85, 664563), (89, 634695), (95, 594609), (131, 431205), (255, 221521), (267, 211565), (285, 198203), (323, 174885), (393, 143735), (445, 126939), (655, 86241), (969, 58295), (1335, 42313), (1513, 37335), (1615, 34977), (1691, 33405), (1965, 28747), (2227, 25365), (2489, 22695), (4539, 12445), (4845, 11659), (5073, 11135), (6681, 8455), (7467, 7565)]