128917870

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{1733}}^1$

素因数の和:1956

約数の個数: 32

約数和(自身を含む): 238959072

約数和(自身を除く): 110041202

約数列:

[1, 2, 5, 10, 43, 86, 173, 215, 346, 430, 865, 1730, 1733, 3466, 7439, 8665, 14878, 17330, 37195, 74390, 74519, 149038, 299809, 372595, 599618, 745190, 1499045, 2998090, 12891787, 25783574, 64458935, 128917870]

約数ペア:

[(1, 128917870), (2, 64458935), (5, 25783574), (10, 12891787), (43, 2998090), (86, 1499045), (173, 745190), (215, 599618), (346, 372595), (430, 299809), (865, 149038), (1730, 74519), (1733, 74390), (3466, 37195), (7439, 17330), (8665, 14878)]