638404676

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{26177}}^1$

素因数の和:26268

約数の個数: 48

約数和(自身を含む): 1395601536

約数和(自身を除く): 757196860

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 67, 91, 134, 182, 268, 364, 469, 871, 938, 1742, 1876, 3484, 6097, 12194, 24388, 26177, 52354, 104708, 183239, 340301, 366478, 680602, 732956, 1361204, 1753859, 2382107, 3507718, 4764214, 7015436, 9528428, 12277013, 22800167, 24554026, 45600334, 49108052, 91200668, 159601169, 319202338, 638404676]

約数ペア:

[(1, 638404676), (2, 319202338), (4, 159601169), (7, 91200668), (13, 49108052), (14, 45600334), (26, 24554026), (28, 22800167), (52, 12277013), (67, 9528428), (91, 7015436), (134, 4764214), (182, 3507718), (268, 2382107), (364, 1753859), (469, 1361204), (871, 732956), (938, 680602), (1742, 366478), (1876, 340301), (3484, 183239), (6097, 104708), (12194, 52354), (24388, 26177)]