21156800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{1889}}^1$

素因数の和:1918

約数の個数: 84

約数和(自身を含む): 59527440

約数和(自身を除く): 38370640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 140, 160, 175, 200, 224, 280, 320, 350, 400, 448, 560, 700, 800, 1120, 1400, 1600, 1889, 2240, 2800, 3778, 5600, 7556, 9445, 11200, 13223, 15112, 18890, 26446, 30224, 37780, 47225, 52892, 60448, 66115, 75560, 94450, 105784, 120896, 132230, 151120, 188900, 211568, 264460, 302240, 330575, 377800, 423136, 528920, 604480, 661150, 755600, 846272, 1057840, 1322300, 1511200, 2115680, 2644600, 3022400, 4231360, 5289200, 10578400, 21156800]

約数ペア:

[(1, 21156800), (2, 10578400), (4, 5289200), (5, 4231360), (7, 3022400), (8, 2644600), (10, 2115680), (14, 1511200), (16, 1322300), (20, 1057840), (25, 846272), (28, 755600), (32, 661150), (35, 604480), (40, 528920), (50, 423136), (56, 377800), (64, 330575), (70, 302240), (80, 264460), (100, 211568), (112, 188900), (140, 151120), (160, 132230), (175, 120896), (200, 105784), (224, 94450), (280, 75560), (320, 66115), (350, 60448), (400, 52892), (448, 47225), (560, 37780), (700, 30224), (800, 26446), (1120, 18890), (1400, 15112), (1600, 13223), (1889, 11200), (2240, 9445), (2800, 7556), (3778, 5600)]