90820715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 118972800

約数和(自身を除く): 28152085

約数列:

[1, 5, 17, 71, 85, 101, 149, 355, 505, 745, 1207, 1717, 2533, 6035, 7171, 8585, 10579, 12665, 15049, 35855, 52895, 75245, 121907, 179843, 255833, 609535, 899215, 1068479, 1279165, 5342395, 18164143, 90820715]

約数ペア:

[(1, 90820715), (5, 18164143), (17, 5342395), (71, 1279165), (85, 1068479), (101, 899215), (149, 609535), (355, 255833), (505, 179843), (745, 121907), (1207, 75245), (1717, 52895), (2533, 35855), (6035, 15049), (7171, 12665), (8585, 10579)]