178603420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{5281}}^1$

素因数の和:5398

約数の個数: 48

約数和(自身を含む): 399319200

約数和(自身を除く): 220715780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 3382, 5281, 6764, 8455, 10562, 16910, 21124, 26405, 33820, 52810, 100339, 105620, 200678, 401356, 470009, 501695, 940018, 1003390, 1880036, 2006780, 2350045, 4700090, 8930171, 9400180, 17860342, 35720684, 44650855, 89301710, 178603420]

約数ペア:

[(1, 178603420), (2, 89301710), (4, 44650855), (5, 35720684), (10, 17860342), (19, 9400180), (20, 8930171), (38, 4700090), (76, 2350045), (89, 2006780), (95, 1880036), (178, 1003390), (190, 940018), (356, 501695), (380, 470009), (445, 401356), (890, 200678), (1691, 105620), (1780, 100339), (3382, 52810), (5281, 33820), (6764, 26405), (8455, 21124), (10562, 16910)]