398753465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{863}}^1$

素因数の和:1181

約数の個数: 32

約数和(自身を含む): 541458432

約数和(自身を除く): 142704967

約数列:

[1, 5, 11, 31, 55, 155, 271, 341, 863, 1355, 1705, 2981, 4315, 8401, 9493, 14905, 26753, 42005, 47465, 92411, 133765, 233873, 294283, 462055, 1169365, 1471415, 2572603, 7250063, 12863015, 36250315, 79750693, 398753465]

約数ペア:

[(1, 398753465), (5, 79750693), (11, 36250315), (31, 12863015), (55, 7250063), (155, 2572603), (271, 1471415), (341, 1169365), (863, 462055), (1355, 294283), (1705, 233873), (2981, 133765), (4315, 92411), (8401, 47465), (9493, 42005), (14905, 26753)]