28717685

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 9298315

約数列:

[1, 5, 23, 29, 79, 109, 115, 145, 395, 545, 667, 1817, 2291, 2507, 3161, 3335, 8611, 9085, 11455, 12535, 15805, 43055, 52693, 72703, 198053, 249719, 263465, 363515, 990265, 1248595, 5743537, 28717685]

約数ペア:

[(1, 28717685), (5, 5743537), (23, 1248595), (29, 990265), (79, 363515), (109, 263465), (115, 249719), (145, 198053), (395, 72703), (545, 52693), (667, 43055), (1817, 15805), (2291, 12535), (2507, 11455), (3161, 9085), (3335, 8611)]