1981140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 6531840

約数和(自身を除く): 4550700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 53, 60, 70, 84, 89, 105, 106, 140, 159, 178, 210, 212, 265, 267, 318, 356, 371, 420, 445, 530, 534, 623, 636, 742, 795, 890, 1060, 1068, 1113, 1246, 1335, 1484, 1590, 1780, 1855, 1869, 2226, 2492, 2670, 3115, 3180, 3710, 3738, 4452, 4717, 5340, 5565, 6230, 7420, 7476, 9345, 9434, 11130, 12460, 14151, 18690, 18868, 22260, 23585, 28302, 33019, 37380, 47170, 56604, 66038, 70755, 94340, 99057, 132076, 141510, 165095, 198114, 283020, 330190, 396228, 495285, 660380, 990570, 1981140]

約数ペア:

[(1, 1981140), (2, 990570), (3, 660380), (4, 495285), (5, 396228), (6, 330190), (7, 283020), (10, 198114), (12, 165095), (14, 141510), (15, 132076), (20, 99057), (21, 94340), (28, 70755), (30, 66038), (35, 56604), (42, 47170), (53, 37380), (60, 33019), (70, 28302), (84, 23585), (89, 22260), (105, 18868), (106, 18690), (140, 14151), (159, 12460), (178, 11130), (210, 9434), (212, 9345), (265, 7476), (267, 7420), (318, 6230), (356, 5565), (371, 5340), (420, 4717), (445, 4452), (530, 3738), (534, 3710), (623, 3180), (636, 3115), (742, 2670), (795, 2492), (890, 2226), (1060, 1869), (1068, 1855), (1113, 1780), (1246, 1590), (1335, 1484)]