25809565

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 8404835

約数列:

[1, 5, 23, 29, 71, 109, 115, 145, 355, 545, 667, 1633, 2059, 2507, 3161, 3335, 7739, 8165, 10295, 12535, 15805, 38695, 47357, 72703, 177997, 224431, 236785, 363515, 889985, 1122155, 5161913, 25809565]

約数ペア:

[(1, 25809565), (5, 5161913), (23, 1122155), (29, 889985), (71, 363515), (109, 236785), (115, 224431), (145, 177997), (355, 72703), (545, 47357), (667, 38695), (1633, 15805), (2059, 12535), (2507, 10295), (3161, 8165), (3335, 7739)]