78212520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:680

約数の個数: 128

約数和(自身を含む): 263088000

約数和(自身を除く): 184875480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 139, 180, 216, 270, 278, 360, 417, 521, 540, 556, 695, 834, 1042, 1080, 1112, 1251, 1390, 1563, 1668, 2084, 2085, 2502, 2605, 2780, 3126, 3336, 3753, 4168, 4170, 4689, 5004, 5210, 5560, 6252, 6255, 7506, 7815, 8340, 9378, 10008, 10420, 12504, 12510, 14067, 15012, 15630, 16680, 18756, 18765, 20840, 23445, 25020, 28134, 30024, 31260, 37512, 37530, 46890, 50040, 56268, 62520, 70335, 72419, 75060, 93780, 112536, 140670, 144838, 150120, 187560, 217257, 281340, 289676, 362095, 434514, 562680, 579352, 651771, 724190, 869028, 1086285, 1303542, 1448380, 1738056, 1955313, 2172570, 2607084, 2896760, 3258855, 3910626, 4345140, 5214168, 6517710, 7821252, 8690280, 9776565, 13035420, 15642504, 19553130, 26070840, 39106260, 78212520]

約数ペア:

[(1, 78212520), (2, 39106260), (3, 26070840), (4, 19553130), (5, 15642504), (6, 13035420), (8, 9776565), (9, 8690280), (10, 7821252), (12, 6517710), (15, 5214168), (18, 4345140), (20, 3910626), (24, 3258855), (27, 2896760), (30, 2607084), (36, 2172570), (40, 1955313), (45, 1738056), (54, 1448380), (60, 1303542), (72, 1086285), (90, 869028), (108, 724190), (120, 651771), (135, 579352), (139, 562680), (180, 434514), (216, 362095), (270, 289676), (278, 281340), (360, 217257), (417, 187560), (521, 150120), (540, 144838), (556, 140670), (695, 112536), (834, 93780), (1042, 75060), (1080, 72419), (1112, 70335), (1251, 62520), (1390, 56268), (1563, 50040), (1668, 46890), (2084, 37530), (2085, 37512), (2502, 31260), (2605, 30024), (2780, 28134), (3126, 25020), (3336, 23445), (3753, 20840), (4168, 18765), (4170, 18756), (4689, 16680), (5004, 15630), (5210, 15012), (5560, 14067), (6252, 12510), (6255, 12504), (7506, 10420), (7815, 10008), (8340, 9378)]