19715040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13691}}^1$

素因数の和:13712

約数の個数: 72

約数和(自身を含む): 67282488

約数和(自身を除く): 47567448

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 13691, 27382, 41073, 54764, 68455, 82146, 109528, 123219, 136910, 164292, 205365, 219056, 246438, 273820, 328584, 410730, 438112, 492876, 547640, 616095, 657168, 821460, 985752, 1095280, 1232190, 1314336, 1642920, 1971504, 2190560, 2464380, 3285840, 3943008, 4928760, 6571680, 9857520, 19715040]

約数ペア:

[(1, 19715040), (2, 9857520), (3, 6571680), (4, 4928760), (5, 3943008), (6, 3285840), (8, 2464380), (9, 2190560), (10, 1971504), (12, 1642920), (15, 1314336), (16, 1232190), (18, 1095280), (20, 985752), (24, 821460), (30, 657168), (32, 616095), (36, 547640), (40, 492876), (45, 438112), (48, 410730), (60, 328584), (72, 273820), (80, 246438), (90, 219056), (96, 205365), (120, 164292), (144, 136910), (160, 123219), (180, 109528), (240, 82146), (288, 68455), (360, 54764), (480, 41073), (720, 27382), (1440, 13691)]