800678920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:407

約数の個数: 128

約数和(自身を含む): 1975881600

約数和(自身を除く): 1175202680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 139, 170, 172, 197, 215, 278, 340, 344, 394, 430, 556, 680, 695, 731, 788, 860, 985, 1112, 1390, 1462, 1576, 1720, 1970, 2363, 2780, 2924, 3349, 3655, 3940, 4726, 5560, 5848, 5977, 6698, 7310, 7880, 8471, 9452, 11815, 11954, 13396, 14620, 16745, 16942, 18904, 23630, 23908, 26792, 27383, 29240, 29885, 33490, 33884, 42355, 47260, 47816, 54766, 59770, 66980, 67768, 84710, 94520, 101609, 109532, 119540, 133960, 136915, 144007, 169420, 203218, 219064, 239080, 273830, 288014, 338840, 406436, 465511, 508045, 547660, 576028, 720035, 812872, 931022, 1016090, 1095320, 1152056, 1177469, 1440070, 1862044, 2032180, 2327555, 2354938, 2880140, 3724088, 4064360, 4655110, 4709876, 5760280, 5887345, 9310220, 9419752, 11774690, 18620440, 20016973, 23549380, 40033946, 47098760, 80067892, 100084865, 160135784, 200169730, 400339460, 800678920]

約数ペア:

[(1, 800678920), (2, 400339460), (4, 200169730), (5, 160135784), (8, 100084865), (10, 80067892), (17, 47098760), (20, 40033946), (34, 23549380), (40, 20016973), (43, 18620440), (68, 11774690), (85, 9419752), (86, 9310220), (136, 5887345), (139, 5760280), (170, 4709876), (172, 4655110), (197, 4064360), (215, 3724088), (278, 2880140), (340, 2354938), (344, 2327555), (394, 2032180), (430, 1862044), (556, 1440070), (680, 1177469), (695, 1152056), (731, 1095320), (788, 1016090), (860, 931022), (985, 812872), (1112, 720035), (1390, 576028), (1462, 547660), (1576, 508045), (1720, 465511), (1970, 406436), (2363, 338840), (2780, 288014), (2924, 273830), (3349, 239080), (3655, 219064), (3940, 203218), (4726, 169420), (5560, 144007), (5848, 136915), (5977, 133960), (6698, 119540), (7310, 109532), (7880, 101609), (8471, 94520), (9452, 84710), (11815, 67768), (11954, 66980), (13396, 59770), (14620, 54766), (16745, 47816), (16942, 47260), (18904, 42355), (23630, 33884), (23908, 33490), (26792, 29885), (27383, 29240)]