77280980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1709}}^1$

素因数の和:1761

約数の個数: 96

約数和(自身を含む): 206841600

約数和(自身を除く): 129560620

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 68, 70, 76, 85, 95, 119, 133, 140, 170, 190, 238, 266, 323, 340, 380, 476, 532, 595, 646, 665, 1190, 1292, 1330, 1615, 1709, 2261, 2380, 2660, 3230, 3418, 4522, 6460, 6836, 8545, 9044, 11305, 11963, 17090, 22610, 23926, 29053, 32471, 34180, 45220, 47852, 58106, 59815, 64942, 116212, 119630, 129884, 145265, 162355, 203371, 227297, 239260, 290530, 324710, 406742, 454594, 552007, 581060, 649420, 813484, 909188, 1016855, 1104014, 1136485, 2033710, 2208028, 2272970, 2760035, 3864049, 4067420, 4545940, 5520070, 7728098, 11040140, 15456196, 19320245, 38640490, 77280980]

約数ペア:

[(1, 77280980), (2, 38640490), (4, 19320245), (5, 15456196), (7, 11040140), (10, 7728098), (14, 5520070), (17, 4545940), (19, 4067420), (20, 3864049), (28, 2760035), (34, 2272970), (35, 2208028), (38, 2033710), (68, 1136485), (70, 1104014), (76, 1016855), (85, 909188), (95, 813484), (119, 649420), (133, 581060), (140, 552007), (170, 454594), (190, 406742), (238, 324710), (266, 290530), (323, 239260), (340, 227297), (380, 203371), (476, 162355), (532, 145265), (595, 129884), (646, 119630), (665, 116212), (1190, 64942), (1292, 59815), (1330, 58106), (1615, 47852), (1709, 45220), (2261, 34180), (2380, 32471), (2660, 29053), (3230, 23926), (3418, 22610), (4522, 17090), (6460, 11963), (6836, 11305), (8545, 9044)]