78801380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:385

約数の個数: 96

約数和(自身を含む): 198868992

約数和(自身を除く): 120067612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 67, 70, 124, 134, 140, 155, 217, 268, 271, 310, 335, 434, 469, 542, 620, 670, 868, 938, 1084, 1085, 1340, 1355, 1876, 1897, 2077, 2170, 2345, 2710, 3794, 4154, 4340, 4690, 5420, 7588, 8308, 8401, 9380, 9485, 10385, 14539, 16802, 18157, 18970, 20770, 29078, 33604, 36314, 37940, 41540, 42005, 58156, 58807, 72628, 72695, 84010, 90785, 117614, 127099, 145390, 168020, 181570, 235228, 254198, 290780, 294035, 363140, 508396, 562867, 588070, 635495, 1125734, 1176140, 1270990, 2251468, 2541980, 2814335, 3940069, 5628670, 7880138, 11257340, 15760276, 19700345, 39400690, 78801380]

約数ペア:

[(1, 78801380), (2, 39400690), (4, 19700345), (5, 15760276), (7, 11257340), (10, 7880138), (14, 5628670), (20, 3940069), (28, 2814335), (31, 2541980), (35, 2251468), (62, 1270990), (67, 1176140), (70, 1125734), (124, 635495), (134, 588070), (140, 562867), (155, 508396), (217, 363140), (268, 294035), (271, 290780), (310, 254198), (335, 235228), (434, 181570), (469, 168020), (542, 145390), (620, 127099), (670, 117614), (868, 90785), (938, 84010), (1084, 72695), (1085, 72628), (1340, 58807), (1355, 58156), (1876, 42005), (1897, 41540), (2077, 37940), (2170, 36314), (2345, 33604), (2710, 29078), (3794, 20770), (4154, 18970), (4340, 18157), (4690, 16802), (5420, 14539), (7588, 10385), (8308, 9485), (8401, 9380)]