128587256

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{74071}}^1$

素因数の和:74115

約数の個数: 32

約数和(自身を含む): 284436480

約数和(自身を除く): 155849224

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 74071, 148142, 296284, 518497, 592568, 1036994, 2073988, 2296201, 4147976, 4592402, 9184804, 16073407, 18369608, 32146814, 64293628, 128587256]

約数ペア:

[(1, 128587256), (2, 64293628), (4, 32146814), (7, 18369608), (8, 16073407), (14, 9184804), (28, 4592402), (31, 4147976), (56, 2296201), (62, 2073988), (124, 1036994), (217, 592568), (248, 518497), (434, 296284), (868, 148142), (1736, 74071)]