20059480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2311}}^1$

素因数の和:2360

約数の個数: 64

約数和(自身を含む): 53268480

約数和(自身を除く): 33209000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 2311, 4340, 4622, 8680, 9244, 11555, 16177, 18488, 23110, 32354, 46220, 64708, 71641, 80885, 92440, 129416, 143282, 161770, 286564, 323540, 358205, 501487, 573128, 647080, 716410, 1002974, 1432820, 2005948, 2507435, 2865640, 4011896, 5014870, 10029740, 20059480]

約数ペア:

[(1, 20059480), (2, 10029740), (4, 5014870), (5, 4011896), (7, 2865640), (8, 2507435), (10, 2005948), (14, 1432820), (20, 1002974), (28, 716410), (31, 647080), (35, 573128), (40, 501487), (56, 358205), (62, 323540), (70, 286564), (124, 161770), (140, 143282), (155, 129416), (217, 92440), (248, 80885), (280, 71641), (310, 64708), (434, 46220), (620, 32354), (868, 23110), (1085, 18488), (1240, 16177), (1736, 11555), (2170, 9244), (2311, 8680), (4340, 4622)]