84784140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{67289}}^1$

素因数の和:67311

約数の個数: 72

約数和(自身を含む): 293922720

約数和(自身を除く): 209138580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 67289, 134578, 201867, 269156, 336445, 403734, 471023, 605601, 672890, 807468, 942046, 1009335, 1211202, 1345780, 1413069, 1884092, 2018670, 2355115, 2422404, 2826138, 3028005, 4037340, 4239207, 4710230, 5652276, 6056010, 7065345, 8478414, 9420460, 12112020, 14130690, 16956828, 21196035, 28261380, 42392070, 84784140]

約数ペア:

[(1, 84784140), (2, 42392070), (3, 28261380), (4, 21196035), (5, 16956828), (6, 14130690), (7, 12112020), (9, 9420460), (10, 8478414), (12, 7065345), (14, 6056010), (15, 5652276), (18, 4710230), (20, 4239207), (21, 4037340), (28, 3028005), (30, 2826138), (35, 2422404), (36, 2355115), (42, 2018670), (45, 1884092), (60, 1413069), (63, 1345780), (70, 1211202), (84, 1009335), (90, 942046), (105, 807468), (126, 672890), (140, 605601), (180, 471023), (210, 403734), (252, 336445), (315, 269156), (420, 201867), (630, 134578), (1260, 67289)]