80108080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:263

約数の個数: 160

約数和(自身を含む): 222735744

約数和(自身を除く): 142627664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 23, 26, 34, 40, 46, 52, 65, 68, 80, 85, 92, 104, 115, 130, 136, 170, 184, 197, 208, 221, 230, 260, 272, 299, 340, 368, 391, 394, 442, 460, 520, 598, 680, 782, 788, 884, 920, 985, 1040, 1105, 1196, 1360, 1495, 1564, 1576, 1768, 1840, 1955, 1970, 2210, 2392, 2561, 2990, 3128, 3152, 3349, 3536, 3910, 3940, 4420, 4531, 4784, 5083, 5122, 5980, 6256, 6698, 7820, 7880, 8840, 9062, 10166, 10244, 11960, 12805, 13396, 15640, 15760, 16745, 17680, 18124, 20332, 20488, 22655, 23920, 25415, 25610, 26792, 31280, 33490, 36248, 40664, 40976, 43537, 45310, 50830, 51220, 53584, 58903, 66980, 72496, 77027, 81328, 87074, 90620, 101660, 102440, 117806, 133960, 154054, 174148, 181240, 203320, 204880, 217685, 235612, 267920, 294515, 308108, 348296, 362480, 385135, 406640, 435370, 471224, 589030, 616216, 696592, 770270, 870740, 942448, 1001351, 1178060, 1232432, 1540540, 1741480, 2002702, 2356120, 3081080, 3482960, 4005404, 4712240, 5006755, 6162160, 8010808, 10013510, 16021616, 20027020, 40054040, 80108080]

約数ペア:

[(1, 80108080), (2, 40054040), (4, 20027020), (5, 16021616), (8, 10013510), (10, 8010808), (13, 6162160), (16, 5006755), (17, 4712240), (20, 4005404), (23, 3482960), (26, 3081080), (34, 2356120), (40, 2002702), (46, 1741480), (52, 1540540), (65, 1232432), (68, 1178060), (80, 1001351), (85, 942448), (92, 870740), (104, 770270), (115, 696592), (130, 616216), (136, 589030), (170, 471224), (184, 435370), (197, 406640), (208, 385135), (221, 362480), (230, 348296), (260, 308108), (272, 294515), (299, 267920), (340, 235612), (368, 217685), (391, 204880), (394, 203320), (442, 181240), (460, 174148), (520, 154054), (598, 133960), (680, 117806), (782, 102440), (788, 101660), (884, 90620), (920, 87074), (985, 81328), (1040, 77027), (1105, 72496), (1196, 66980), (1360, 58903), (1495, 53584), (1564, 51220), (1576, 50830), (1768, 45310), (1840, 43537), (1955, 40976), (1970, 40664), (2210, 36248), (2392, 33490), (2561, 31280), (2990, 26792), (3128, 25610), (3152, 25415), (3349, 23920), (3536, 22655), (3910, 20488), (3940, 20332), (4420, 18124), (4531, 17680), (4784, 16745), (5083, 15760), (5122, 15640), (5980, 13396), (6256, 12805), (6698, 11960), (7820, 10244), (7880, 10166), (8840, 9062)]