1283999720

素因数分解:

$2^3\times 5^1\times {\mathrm{751}}^1\times {\mathrm{42743}}^1$

素因数の和:43505

約数の個数: 32

約数和(自身を含む): 2892913920

約数和(自身を除く): 1608914200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 751, 1502, 3004, 3755, 6008, 7510, 15020, 30040, 42743, 85486, 170972, 213715, 341944, 427430, 854860, 1709720, 32099993, 64199986, 128399972, 160499965, 256799944, 320999930, 641999860, 1283999720]

約数ペア:

[(1, 1283999720), (2, 641999860), (4, 320999930), (5, 256799944), (8, 160499965), (10, 128399972), (20, 64199986), (40, 32099993), (751, 1709720), (1502, 854860), (3004, 427430), (3755, 341944), (6008, 213715), (7510, 170972), (15020, 85486), (30040, 42743)]