1921400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{739}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 4817400

約数和(自身を除く): 2896000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 739, 1300, 1478, 2600, 2956, 3695, 5912, 7390, 9607, 14780, 18475, 19214, 29560, 36950, 38428, 48035, 73900, 76856, 96070, 147800, 192140, 240175, 384280, 480350, 960700, 1921400]

約数ペア:

[(1, 1921400), (2, 960700), (4, 480350), (5, 384280), (8, 240175), (10, 192140), (13, 147800), (20, 96070), (25, 76856), (26, 73900), (40, 48035), (50, 38428), (52, 36950), (65, 29560), (100, 19214), (104, 18475), (130, 14780), (200, 9607), (260, 7390), (325, 5912), (520, 3695), (650, 2956), (739, 2600), (1300, 1478)]