19744400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3797}}^1$

素因数の和:3828

約数の個数: 60

約数和(自身を含む): 51098292

約数和(自身を除く): 31353892

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 3797, 5200, 7594, 15188, 18985, 30376, 37970, 49361, 60752, 75940, 94925, 98722, 151880, 189850, 197444, 246805, 303760, 379700, 394888, 493610, 759400, 789776, 987220, 1234025, 1518800, 1974440, 2468050, 3948880, 4936100, 9872200, 19744400]

約数ペア:

[(1, 19744400), (2, 9872200), (4, 4936100), (5, 3948880), (8, 2468050), (10, 1974440), (13, 1518800), (16, 1234025), (20, 987220), (25, 789776), (26, 759400), (40, 493610), (50, 394888), (52, 379700), (65, 303760), (80, 246805), (100, 197444), (104, 189850), (130, 151880), (200, 98722), (208, 94925), (260, 75940), (325, 60752), (400, 49361), (520, 37970), (650, 30376), (1040, 18985), (1300, 15188), (2600, 7594), (3797, 5200)]