164448640

素因数分解:

$2^7\times 5^1\times {\mathrm{263}}^1\times {\mathrm{977}}^1$

素因数の和:1259

約数の個数: 64

約数和(自身を含む): 395033760

約数和(自身を除く): 230585120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 263, 320, 526, 640, 977, 1052, 1315, 1954, 2104, 2630, 3908, 4208, 4885, 5260, 7816, 8416, 9770, 10520, 15632, 16832, 19540, 21040, 31264, 33664, 39080, 42080, 62528, 78160, 84160, 125056, 156320, 168320, 256951, 312640, 513902, 625280, 1027804, 1284755, 2055608, 2569510, 4111216, 5139020, 8222432, 10278040, 16444864, 20556080, 32889728, 41112160, 82224320, 164448640]

約数ペア:

[(1, 164448640), (2, 82224320), (4, 41112160), (5, 32889728), (8, 20556080), (10, 16444864), (16, 10278040), (20, 8222432), (32, 5139020), (40, 4111216), (64, 2569510), (80, 2055608), (128, 1284755), (160, 1027804), (263, 625280), (320, 513902), (526, 312640), (640, 256951), (977, 168320), (1052, 156320), (1315, 125056), (1954, 84160), (2104, 78160), (2630, 62528), (3908, 42080), (4208, 39080), (4885, 33664), (5260, 31264), (7816, 21040), (8416, 19540), (9770, 16832), (10520, 15632)]