20896680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24877}}^1$

素因数の和:24898

約数の個数: 64

約数和(自身を含む): 71648640

約数和(自身を除く): 50751960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24877, 49754, 74631, 99508, 124385, 149262, 174139, 199016, 248770, 298524, 348278, 373155, 497540, 522417, 597048, 696556, 746310, 870695, 995080, 1044834, 1393112, 1492620, 1741390, 2089668, 2612085, 2985240, 3482780, 4179336, 5224170, 6965560, 10448340, 20896680]

約数ペア:

[(1, 20896680), (2, 10448340), (3, 6965560), (4, 5224170), (5, 4179336), (6, 3482780), (7, 2985240), (8, 2612085), (10, 2089668), (12, 1741390), (14, 1492620), (15, 1393112), (20, 1044834), (21, 995080), (24, 870695), (28, 746310), (30, 696556), (35, 597048), (40, 522417), (42, 497540), (56, 373155), (60, 348278), (70, 298524), (84, 248770), (105, 199016), (120, 174139), (140, 149262), (168, 124385), (210, 99508), (280, 74631), (420, 49754), (840, 24877)]