205415520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{427949}}^1$

素因数の和:427967

約数の個数: 48

約数和(自身を含む): 647060400

約数和(自身を除く): 441644880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 427949, 855898, 1283847, 1711796, 2139745, 2567694, 3423592, 4279490, 5135388, 6419235, 6847184, 8558980, 10270776, 12838470, 13694368, 17117960, 20541552, 25676940, 34235920, 41083104, 51353880, 68471840, 102707760, 205415520]

約数ペア:

[(1, 205415520), (2, 102707760), (3, 68471840), (4, 51353880), (5, 41083104), (6, 34235920), (8, 25676940), (10, 20541552), (12, 17117960), (15, 13694368), (16, 12838470), (20, 10270776), (24, 8558980), (30, 6847184), (32, 6419235), (40, 5135388), (48, 4279490), (60, 3423592), (80, 2567694), (96, 2139745), (120, 1711796), (160, 1283847), (240, 855898), (480, 427949)]