16988894195

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{17977}}^1$

素因数の和:18100

約数の個数: 64

約数和(自身を含む): 26288726016

約数和(自身を除く): 9299831821

約数列:

[1, 5, 7, 13, 31, 35, 65, 67, 91, 155, 217, 335, 403, 455, 469, 871, 1085, 2015, 2077, 2345, 2821, 4355, 6097, 10385, 14105, 14539, 17977, 27001, 30485, 72695, 89885, 125839, 135005, 189007, 233701, 557287, 629195, 945035, 1168505, 1204459, 1635907, 2786435, 3901009, 6022295, 7244731, 8179535, 8431213, 15657967, 19505045, 36223655, 37338229, 42156065, 50713117, 78289835, 109605769, 186691145, 253565585, 261367603, 485396977, 548028845, 1306838015, 2426984885, 3397778839, 16988894195]

約数ペア:

[(1, 16988894195), (5, 3397778839), (7, 2426984885), (13, 1306838015), (31, 548028845), (35, 485396977), (65, 261367603), (67, 253565585), (91, 186691145), (155, 109605769), (217, 78289835), (335, 50713117), (403, 42156065), (455, 37338229), (469, 36223655), (871, 19505045), (1085, 15657967), (2015, 8431213), (2077, 8179535), (2345, 7244731), (2821, 6022295), (4355, 3901009), (6097, 2786435), (10385, 1635907), (14105, 1204459), (14539, 1168505), (17977, 945035), (27001, 629195), (30485, 557287), (72695, 233701), (89885, 189007), (125839, 135005)]