128940012

素因数分解:

$2^2\times 3^4\times {\mathrm{397963}}^1$

素因数の和:397979

約数の個数: 30

約数和(自身を含む): 337075508

約数和(自身を除く): 208135496

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 397963, 795926, 1193889, 1591852, 2387778, 3581667, 4775556, 7163334, 10745001, 14326668, 21490002, 32235003, 42980004, 64470006, 128940012]

約数ペア:

[(1, 128940012), (2, 64470006), (3, 42980004), (4, 32235003), (6, 21490002), (9, 14326668), (12, 10745001), (18, 7163334), (27, 4775556), (36, 3581667), (54, 2387778), (81, 1591852), (108, 1193889), (162, 795926), (324, 397963)]