18227755

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 28153440

約数和(自身を除く): 9925685

約数列:

[1, 5, 7, 13, 35, 49, 59, 65, 91, 97, 245, 295, 413, 455, 485, 637, 679, 767, 1261, 2065, 2891, 3185, 3395, 3835, 4753, 5369, 5723, 6305, 8827, 14455, 23765, 26845, 28615, 37583, 40061, 44135, 61789, 74399, 187915, 200305, 280427, 308945, 371995, 520793, 1402135, 2603965, 3645551, 18227755]

約数ペア:

[(1, 18227755), (5, 3645551), (7, 2603965), (13, 1402135), (35, 520793), (49, 371995), (59, 308945), (65, 280427), (91, 200305), (97, 187915), (245, 74399), (295, 61789), (413, 44135), (455, 40061), (485, 37583), (637, 28615), (679, 26845), (767, 23765), (1261, 14455), (2065, 8827), (2891, 6305), (3185, 5723), (3395, 5369), (3835, 4753)]