85691905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 122121216

約数和(自身を除く): 36429311

約数列:

[1, 5, 13, 23, 31, 43, 65, 115, 155, 215, 299, 403, 559, 713, 989, 1333, 1495, 1849, 2015, 2795, 3565, 4945, 6665, 9245, 9269, 12857, 17329, 24037, 30659, 42527, 46345, 57319, 64285, 86645, 120185, 153295, 212635, 286595, 398567, 552851, 745147, 1318337, 1992835, 2764255, 3725735, 6591685, 17138381, 85691905]

約数ペア:

[(1, 85691905), (5, 17138381), (13, 6591685), (23, 3725735), (31, 2764255), (43, 1992835), (65, 1318337), (115, 745147), (155, 552851), (215, 398567), (299, 286595), (403, 212635), (559, 153295), (713, 120185), (989, 86645), (1333, 64285), (1495, 57319), (1849, 46345), (2015, 42527), (2795, 30659), (3565, 24037), (4945, 17329), (6665, 12857), (9245, 9269)]