86900905

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 135991296

約数和(自身を除く): 49090391

約数列:

[1, 5, 7, 13, 31, 35, 61, 65, 91, 101, 155, 217, 305, 403, 427, 455, 505, 707, 793, 1085, 1313, 1891, 2015, 2135, 2821, 3131, 3535, 3965, 5551, 6161, 6565, 9191, 9455, 13237, 14105, 15655, 21917, 24583, 27755, 30805, 40703, 43127, 45955, 66185, 80093, 109585, 122915, 172081, 190991, 203515, 215635, 284921, 400465, 560651, 860405, 954955, 1336937, 1424605, 2482883, 2803255, 6684685, 12414415, 17380181, 86900905]

約数ペア:

[(1, 86900905), (5, 17380181), (7, 12414415), (13, 6684685), (31, 2803255), (35, 2482883), (61, 1424605), (65, 1336937), (91, 954955), (101, 860405), (155, 560651), (217, 400465), (305, 284921), (403, 215635), (427, 203515), (455, 190991), (505, 172081), (707, 122915), (793, 109585), (1085, 80093), (1313, 66185), (1891, 45955), (2015, 43127), (2135, 40703), (2821, 30805), (3131, 27755), (3535, 24583), (3965, 21917), (5551, 15655), (6161, 14105), (6565, 13237), (9191, 9455)]