20247668

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{251}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 42223104

約数和(自身を除く): 21975436

約数列:

[1, 2, 4, 7, 14, 28, 43, 67, 86, 134, 172, 251, 268, 301, 469, 502, 602, 938, 1004, 1204, 1757, 1876, 2881, 3514, 5762, 7028, 10793, 11524, 16817, 20167, 21586, 33634, 40334, 43172, 67268, 75551, 80668, 117719, 151102, 235438, 302204, 470876, 723131, 1446262, 2892524, 5061917, 10123834, 20247668]

約数ペア:

[(1, 20247668), (2, 10123834), (4, 5061917), (7, 2892524), (14, 1446262), (28, 723131), (43, 470876), (67, 302204), (86, 235438), (134, 151102), (172, 117719), (251, 80668), (268, 75551), (301, 67268), (469, 43172), (502, 40334), (602, 33634), (938, 21586), (1004, 20167), (1204, 16817), (1757, 11524), (1876, 10793), (2881, 7028), (3514, 5762)]