8697252920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{661}}^1$

素因数の和:897

約数の個数: 128

約数和(自身を含む): 20539370880

約数和(自身を除く): 11842117960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 113, 142, 164, 205, 226, 284, 328, 355, 410, 452, 565, 568, 661, 710, 820, 904, 1130, 1322, 1420, 1640, 2260, 2644, 2840, 2911, 3305, 4520, 4633, 5288, 5822, 6610, 8023, 9266, 11644, 13220, 14555, 16046, 18532, 23165, 23288, 26440, 27101, 29110, 32092, 37064, 40115, 46330, 46931, 54202, 58220, 64184, 74693, 80230, 92660, 93862, 108404, 116440, 135505, 149386, 160460, 185320, 187724, 216808, 234655, 271010, 298772, 320920, 328943, 373465, 375448, 469310, 542020, 597544, 657886, 746930, 938620, 1084040, 1315772, 1493860, 1644715, 1877240, 1924171, 2631544, 2987720, 3062413, 3289430, 3848342, 5303203, 6124826, 6578860, 7696684, 9620855, 10606406, 12249652, 13157720, 15312065, 15393368, 19241710, 21212812, 24499304, 26516015, 30624130, 38483420, 42425624, 53032030, 61248260, 76966840, 106064060, 122496520, 212128120, 217431323, 434862646, 869725292, 1087156615, 1739450584, 2174313230, 4348626460, 8697252920]

約数ペア:

[(1, 8697252920), (2, 4348626460), (4, 2174313230), (5, 1739450584), (8, 1087156615), (10, 869725292), (20, 434862646), (40, 217431323), (41, 212128120), (71, 122496520), (82, 106064060), (113, 76966840), (142, 61248260), (164, 53032030), (205, 42425624), (226, 38483420), (284, 30624130), (328, 26516015), (355, 24499304), (410, 21212812), (452, 19241710), (565, 15393368), (568, 15312065), (661, 13157720), (710, 12249652), (820, 10606406), (904, 9620855), (1130, 7696684), (1322, 6578860), (1420, 6124826), (1640, 5303203), (2260, 3848342), (2644, 3289430), (2840, 3062413), (2911, 2987720), (3305, 2631544), (4520, 1924171), (4633, 1877240), (5288, 1644715), (5822, 1493860), (6610, 1315772), (8023, 1084040), (9266, 938620), (11644, 746930), (13220, 657886), (14555, 597544), (16046, 542020), (18532, 469310), (23165, 375448), (23288, 373465), (26440, 328943), (27101, 320920), (29110, 298772), (32092, 271010), (37064, 234655), (40115, 216808), (46330, 187724), (46931, 185320), (54202, 160460), (58220, 149386), (64184, 135505), (74693, 116440), (80230, 108404), (92660, 93862)]