220870815

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1489}}^1$

素因数の和:1568

約数の個数: 64

約数和(自身を含む): 411955200

約数和(自身を除く): 191084385

約数列:

[1, 3, 5, 11, 15, 29, 31, 33, 55, 87, 93, 145, 155, 165, 319, 341, 435, 465, 899, 957, 1023, 1489, 1595, 1705, 2697, 4467, 4495, 4785, 5115, 7445, 9889, 13485, 16379, 22335, 29667, 43181, 46159, 49137, 49445, 81895, 129543, 138477, 148335, 215905, 230795, 245685, 474991, 507749, 647715, 692385, 1338611, 1424973, 1523247, 2374955, 2538745, 4015833, 6693055, 7124865, 7616235, 14724721, 20079165, 44174163, 73623605, 220870815]

約数ペア:

[(1, 220870815), (3, 73623605), (5, 44174163), (11, 20079165), (15, 14724721), (29, 7616235), (31, 7124865), (33, 6693055), (55, 4015833), (87, 2538745), (93, 2374955), (145, 1523247), (155, 1424973), (165, 1338611), (319, 692385), (341, 647715), (435, 507749), (465, 474991), (899, 245685), (957, 230795), (1023, 215905), (1489, 148335), (1595, 138477), (1705, 129543), (2697, 81895), (4467, 49445), (4495, 49137), (4785, 46159), (5115, 43181), (7445, 29667), (9889, 22335), (13485, 16379)]