1640783885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{293}}^1\times {\mathrm{853}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 2151219168

約数和(自身を除く): 510435283

約数列:

[1, 5, 13, 65, 101, 293, 505, 853, 1313, 1465, 3809, 4265, 6565, 11089, 19045, 29593, 55445, 86153, 147965, 249929, 384709, 430765, 1119989, 1249645, 1923545, 3249077, 5599945, 16245385, 25242829, 126214145, 328156777, 1640783885]

約数ペア:

[(1, 1640783885), (5, 328156777), (13, 126214145), (65, 25242829), (101, 16245385), (293, 5599945), (505, 3249077), (853, 1923545), (1313, 1249645), (1465, 1119989), (3809, 430765), (4265, 384709), (6565, 249929), (11089, 147965), (19045, 86153), (29593, 55445)]