19805100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{9431}}^1$

素因数の和:9455

約数の個数: 72

約数和(自身を含む): 65495808

約数和(自身を除く): 45690708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 9431, 18862, 28293, 37724, 47155, 56586, 66017, 94310, 113172, 132034, 141465, 188620, 198051, 235775, 264068, 282930, 330085, 396102, 471550, 565860, 660170, 707325, 792204, 943100, 990255, 1320340, 1414650, 1650425, 1980510, 2829300, 3300850, 3961020, 4951275, 6601700, 9902550, 19805100]

約数ペア:

[(1, 19805100), (2, 9902550), (3, 6601700), (4, 4951275), (5, 3961020), (6, 3300850), (7, 2829300), (10, 1980510), (12, 1650425), (14, 1414650), (15, 1320340), (20, 990255), (21, 943100), (25, 792204), (28, 707325), (30, 660170), (35, 565860), (42, 471550), (50, 396102), (60, 330085), (70, 282930), (75, 264068), (84, 235775), (100, 198051), (105, 188620), (140, 141465), (150, 132034), (175, 113172), (210, 94310), (300, 66017), (350, 56586), (420, 47155), (525, 37724), (700, 28293), (1050, 18862), (2100, 9431)]