20452564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{739}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 42517440

約数和(自身を除く): 22064876

約数列:

[1, 2, 4, 11, 17, 22, 34, 37, 44, 68, 74, 148, 187, 374, 407, 629, 739, 748, 814, 1258, 1478, 1628, 2516, 2956, 6919, 8129, 12563, 13838, 16258, 25126, 27343, 27676, 32516, 50252, 54686, 109372, 138193, 276386, 300773, 464831, 552772, 601546, 929662, 1203092, 1859324, 5113141, 10226282, 20452564]

約数ペア:

[(1, 20452564), (2, 10226282), (4, 5113141), (11, 1859324), (17, 1203092), (22, 929662), (34, 601546), (37, 552772), (44, 464831), (68, 300773), (74, 276386), (148, 138193), (187, 109372), (374, 54686), (407, 50252), (629, 32516), (739, 27676), (748, 27343), (814, 25126), (1258, 16258), (1478, 13838), (1628, 12563), (2516, 8129), (2956, 6919)]