721758780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{31573}}^1$

素因数の和:31715

約数の個数: 72

約数和(自身を含む): 2206643712

約数和(自身を除く): 1484884932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 1143, 1270, 1524, 1905, 2286, 2540, 3810, 4572, 5715, 7620, 11430, 22860, 31573, 63146, 94719, 126292, 157865, 189438, 284157, 315730, 378876, 473595, 568314, 631460, 947190, 1136628, 1420785, 1894380, 2841570, 4009771, 5683140, 8019542, 12029313, 16039084, 20048855, 24058626, 36087939, 40097710, 48117252, 60146565, 72175878, 80195420, 120293130, 144351756, 180439695, 240586260, 360879390, 721758780]

約数ペア:

[(1, 721758780), (2, 360879390), (3, 240586260), (4, 180439695), (5, 144351756), (6, 120293130), (9, 80195420), (10, 72175878), (12, 60146565), (15, 48117252), (18, 40097710), (20, 36087939), (30, 24058626), (36, 20048855), (45, 16039084), (60, 12029313), (90, 8019542), (127, 5683140), (180, 4009771), (254, 2841570), (381, 1894380), (508, 1420785), (635, 1136628), (762, 947190), (1143, 631460), (1270, 568314), (1524, 473595), (1905, 378876), (2286, 315730), (2540, 284157), (3810, 189438), (4572, 157865), (5715, 126292), (7620, 94719), (11430, 63146), (22860, 31573)]