164027440

素因数分解:

$2^4\times 5^1\times {\mathrm{647}}^1\times {\mathrm{3169}}^1$

素因数の和:3829

約数の個数: 40

約数和(自身を含む): 382073760

約数和(自身を除く): 218046320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647, 1294, 2588, 3169, 3235, 5176, 6338, 6470, 10352, 12676, 12940, 15845, 25352, 25880, 31690, 50704, 51760, 63380, 126760, 253520, 2050343, 4100686, 8201372, 10251715, 16402744, 20503430, 32805488, 41006860, 82013720, 164027440]

約数ペア:

[(1, 164027440), (2, 82013720), (4, 41006860), (5, 32805488), (8, 20503430), (10, 16402744), (16, 10251715), (20, 8201372), (40, 4100686), (80, 2050343), (647, 253520), (1294, 126760), (2588, 63380), (3169, 51760), (3235, 50704), (5176, 31690), (6338, 25880), (6470, 25352), (10352, 15845), (12676, 12940)]