128991664

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{271}}^1\times {\mathrm{419}}^1$

素因数の和:769

約数の個数: 40

約数和(自身を含む): 254983680

約数和(自身を除く): 125992016

約数列:

[1, 2, 4, 8, 16, 71, 142, 271, 284, 419, 542, 568, 838, 1084, 1136, 1676, 2168, 3352, 4336, 6704, 19241, 29749, 38482, 59498, 76964, 113549, 118996, 153928, 227098, 237992, 307856, 454196, 475984, 908392, 1816784, 8061979, 16123958, 32247916, 64495832, 128991664]

約数ペア:

[(1, 128991664), (2, 64495832), (4, 32247916), (8, 16123958), (16, 8061979), (71, 1816784), (142, 908392), (271, 475984), (284, 454196), (419, 307856), (542, 237992), (568, 227098), (838, 153928), (1084, 118996), (1136, 113549), (1676, 76964), (2168, 59498), (3352, 38482), (4336, 29749), (6704, 19241)]