128156728

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73823}}^1$

素因数の和:73867

約数の個数: 32

約数和(自身を含む): 283484160

約数和(自身を除く): 155327432

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 73823, 147646, 295292, 516761, 590584, 1033522, 2067044, 2288513, 4134088, 4577026, 9154052, 16019591, 18308104, 32039182, 64078364, 128156728]

約数ペア:

[(1, 128156728), (2, 64078364), (4, 32039182), (7, 18308104), (8, 16019591), (14, 9154052), (28, 4577026), (31, 4134088), (56, 2288513), (62, 2067044), (124, 1033522), (217, 590584), (248, 516761), (434, 295292), (868, 147646), (1736, 73823)]