1980835675

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{28087}}^1$

素因数の和:28148

約数の個数: 48

約数和(自身を含む): 3120689152

約数和(自身を除く): 1139853477

約数列:

[1, 5, 7, 13, 25, 31, 35, 65, 91, 155, 175, 217, 325, 403, 455, 775, 1085, 2015, 2275, 2821, 5425, 10075, 14105, 28087, 70525, 140435, 196609, 365131, 702175, 870697, 983045, 1825655, 2555917, 4353485, 4915225, 6094879, 9128275, 11319061, 12779585, 21767425, 30474395, 56595305, 63897925, 79233427, 152371975, 282976525, 396167135, 1980835675]

約数ペア:

[(1, 1980835675), (5, 396167135), (7, 282976525), (13, 152371975), (25, 79233427), (31, 63897925), (35, 56595305), (65, 30474395), (91, 21767425), (155, 12779585), (175, 11319061), (217, 9128275), (325, 6094879), (403, 4915225), (455, 4353485), (775, 2555917), (1085, 1825655), (2015, 983045), (2275, 870697), (2821, 702175), (5425, 365131), (10075, 196609), (14105, 140435), (28087, 70525)]