177641620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1721}}^1$

素因数の和:2140

約数の個数: 48

約数和(自身を含む): 402989328

約数和(自身を除く): 225347708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 397, 794, 1588, 1721, 1985, 3442, 3970, 5161, 6884, 7940, 8605, 10322, 17210, 20644, 22373, 25805, 34420, 44746, 51610, 89492, 103220, 111865, 223730, 447460, 683237, 1366474, 2732948, 3416185, 6832370, 8882081, 13664740, 17764162, 35528324, 44410405, 88820810, 177641620]

約数ペア:

[(1, 177641620), (2, 88820810), (4, 44410405), (5, 35528324), (10, 17764162), (13, 13664740), (20, 8882081), (26, 6832370), (52, 3416185), (65, 2732948), (130, 1366474), (260, 683237), (397, 447460), (794, 223730), (1588, 111865), (1721, 103220), (1985, 89492), (3442, 51610), (3970, 44746), (5161, 34420), (6884, 25805), (7940, 22373), (8605, 20644), (10322, 17210)]