51437804540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1\times {\mathrm{74287}}^1$

素因数の和:74774

約数の個数: 48

約数和(自身を含む): 109515369600

約数和(自身を除く): 58077565060

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 389, 445, 778, 890, 1556, 1780, 1945, 3890, 7780, 34621, 69242, 74287, 138484, 148574, 173105, 297148, 346210, 371435, 692420, 742870, 1485740, 6611543, 13223086, 26446172, 28897643, 33057715, 57795286, 66115430, 115590572, 132230860, 144488215, 288976430, 577952860, 2571890227, 5143780454, 10287560908, 12859451135, 25718902270, 51437804540]

約数ペア:

[(1, 51437804540), (2, 25718902270), (4, 12859451135), (5, 10287560908), (10, 5143780454), (20, 2571890227), (89, 577952860), (178, 288976430), (356, 144488215), (389, 132230860), (445, 115590572), (778, 66115430), (890, 57795286), (1556, 33057715), (1780, 28897643), (1945, 26446172), (3890, 13223086), (7780, 6611543), (34621, 1485740), (69242, 742870), (74287, 692420), (138484, 371435), (148574, 346210), (173105, 297148)]