157475420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{1283}}^1$

素因数の和:1347

約数の個数: 72

約数和(自身を含む): 369838224

約数和(自身を除く): 212362804

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 361, 380, 646, 722, 1283, 1292, 1444, 1615, 1805, 2566, 3230, 3610, 5132, 6137, 6415, 6460, 7220, 12274, 12830, 21811, 24377, 24548, 25660, 30685, 43622, 48754, 61370, 87244, 97508, 109055, 121885, 122740, 218110, 243770, 414409, 436220, 463163, 487540, 828818, 926326, 1657636, 1852652, 2072045, 2315815, 4144090, 4631630, 7873771, 8288180, 9263260, 15747542, 31495084, 39368855, 78737710, 157475420]

約数ペア:

[(1, 157475420), (2, 78737710), (4, 39368855), (5, 31495084), (10, 15747542), (17, 9263260), (19, 8288180), (20, 7873771), (34, 4631630), (38, 4144090), (68, 2315815), (76, 2072045), (85, 1852652), (95, 1657636), (170, 926326), (190, 828818), (323, 487540), (340, 463163), (361, 436220), (380, 414409), (646, 243770), (722, 218110), (1283, 122740), (1292, 121885), (1444, 109055), (1615, 97508), (1805, 87244), (2566, 61370), (3230, 48754), (3610, 43622), (5132, 30685), (6137, 25660), (6415, 24548), (6460, 24377), (7220, 21811), (12274, 12830)]