28639195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 38997504

約数和(自身を除く): 10358309

約数列:

[1, 5, 13, 31, 61, 65, 155, 233, 305, 403, 793, 1165, 1891, 2015, 3029, 3965, 7223, 9455, 14213, 15145, 24583, 36115, 71065, 93899, 122915, 184769, 440603, 469495, 923845, 2203015, 5727839, 28639195]

約数ペア:

[(1, 28639195), (5, 5727839), (13, 2203015), (31, 923845), (61, 469495), (65, 440603), (155, 184769), (233, 122915), (305, 93899), (403, 71065), (793, 36115), (1165, 24583), (1891, 15145), (2015, 14213), (3029, 9455), (3965, 7223)]