20719286460

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12789683}}^1$

素因数の和:12789704

約数の個数: 60

約数和(自身を含む): 64997174088

約数和(自身を除く): 44277887628

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12789683, 25579366, 38369049, 51158732, 63948415, 76738098, 115107147, 127896830, 153476196, 191845245, 230214294, 255793660, 345321441, 383690490, 460428588, 575535735, 690642882, 767380980, 1035964323, 1151071470, 1381285764, 1726607205, 2071928646, 2302142940, 3453214410, 4143857292, 5179821615, 6906428820, 10359643230, 20719286460]

約数ペア:

[(1, 20719286460), (2, 10359643230), (3, 6906428820), (4, 5179821615), (5, 4143857292), (6, 3453214410), (9, 2302142940), (10, 2071928646), (12, 1726607205), (15, 1381285764), (18, 1151071470), (20, 1035964323), (27, 767380980), (30, 690642882), (36, 575535735), (45, 460428588), (54, 383690490), (60, 345321441), (81, 255793660), (90, 230214294), (108, 191845245), (135, 153476196), (162, 127896830), (180, 115107147), (270, 76738098), (324, 63948415), (405, 51158732), (540, 38369049), (810, 25579366), (1620, 12789683)]