788893480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:291

約数の個数: 128

約数和(自身を含む): 1889521920

約数和(自身を除く): 1100628440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 61, 73, 86, 103, 122, 146, 172, 206, 215, 244, 292, 305, 344, 365, 412, 430, 488, 515, 584, 610, 730, 824, 860, 1030, 1220, 1460, 1720, 2060, 2440, 2623, 2920, 3139, 4120, 4429, 4453, 5246, 6278, 6283, 7519, 8858, 8906, 10492, 12556, 12566, 13115, 15038, 15695, 17716, 17812, 20984, 22145, 22265, 25112, 25132, 26230, 30076, 31390, 31415, 35432, 35624, 37595, 44290, 44530, 50264, 52460, 60152, 62780, 62830, 75190, 88580, 89060, 104920, 125560, 125660, 150380, 177160, 178120, 191479, 251320, 270169, 300760, 323317, 382958, 458659, 540338, 646634, 765916, 917318, 957395, 1080676, 1293268, 1350845, 1531832, 1616585, 1834636, 1914790, 2161352, 2293295, 2586536, 2701690, 3233170, 3669272, 3829580, 4586590, 5403380, 6466340, 7659160, 9173180, 10806760, 12932680, 18346360, 19722337, 39444674, 78889348, 98611685, 157778696, 197223370, 394446740, 788893480]

約数ペア:

[(1, 788893480), (2, 394446740), (4, 197223370), (5, 157778696), (8, 98611685), (10, 78889348), (20, 39444674), (40, 19722337), (43, 18346360), (61, 12932680), (73, 10806760), (86, 9173180), (103, 7659160), (122, 6466340), (146, 5403380), (172, 4586590), (206, 3829580), (215, 3669272), (244, 3233170), (292, 2701690), (305, 2586536), (344, 2293295), (365, 2161352), (412, 1914790), (430, 1834636), (488, 1616585), (515, 1531832), (584, 1350845), (610, 1293268), (730, 1080676), (824, 957395), (860, 917318), (1030, 765916), (1220, 646634), (1460, 540338), (1720, 458659), (2060, 382958), (2440, 323317), (2623, 300760), (2920, 270169), (3139, 251320), (4120, 191479), (4429, 178120), (4453, 177160), (5246, 150380), (6278, 125660), (6283, 125560), (7519, 104920), (8858, 89060), (8906, 88580), (10492, 75190), (12556, 62830), (12566, 62780), (13115, 60152), (15038, 52460), (15695, 50264), (17716, 44530), (17812, 44290), (20984, 37595), (22145, 35624), (22265, 35432), (25112, 31415), (25132, 31390), (26230, 30076)]