18969181895

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1\times {\mathrm{4621}}^1$

素因数の和:5043

約数の個数: 32

約数和(自身を含む): 23755009344

約数和(自身を除く): 4785827449

約数列:

[1, 5, 43, 61, 215, 305, 313, 1565, 2623, 4621, 13115, 13459, 19093, 23105, 67295, 95465, 198703, 281881, 820999, 993515, 1409405, 1446373, 4104995, 7231865, 12120883, 60604415, 62194039, 88228753, 310970195, 441143765, 3793836379, 18969181895]

約数ペア:

[(1, 18969181895), (5, 3793836379), (43, 441143765), (61, 310970195), (215, 88228753), (305, 62194039), (313, 60604415), (1565, 12120883), (2623, 7231865), (4621, 4104995), (13115, 1446373), (13459, 1409405), (19093, 993515), (23105, 820999), (67295, 281881), (95465, 198703)]