78086820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2089}}^1$

素因数の和:2197

約数の個数: 96

約数和(自身を含む): 252806400

約数和(自身を除く): 174719580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 89, 105, 140, 178, 210, 267, 356, 420, 445, 534, 623, 890, 1068, 1246, 1335, 1780, 1869, 2089, 2492, 2670, 3115, 3738, 4178, 5340, 6230, 6267, 7476, 8356, 9345, 10445, 12460, 12534, 14623, 18690, 20890, 25068, 29246, 31335, 37380, 41780, 43869, 58492, 62670, 73115, 87738, 125340, 146230, 175476, 185921, 219345, 292460, 371842, 438690, 557763, 743684, 877380, 929605, 1115526, 1301447, 1859210, 2231052, 2602894, 2788815, 3718420, 3904341, 5205788, 5577630, 6507235, 7808682, 11155260, 13014470, 15617364, 19521705, 26028940, 39043410, 78086820]

約数ペア:

[(1, 78086820), (2, 39043410), (3, 26028940), (4, 19521705), (5, 15617364), (6, 13014470), (7, 11155260), (10, 7808682), (12, 6507235), (14, 5577630), (15, 5205788), (20, 3904341), (21, 3718420), (28, 2788815), (30, 2602894), (35, 2231052), (42, 1859210), (60, 1301447), (70, 1115526), (84, 929605), (89, 877380), (105, 743684), (140, 557763), (178, 438690), (210, 371842), (267, 292460), (356, 219345), (420, 185921), (445, 175476), (534, 146230), (623, 125340), (890, 87738), (1068, 73115), (1246, 62670), (1335, 58492), (1780, 43869), (1869, 41780), (2089, 37380), (2492, 31335), (2670, 29246), (3115, 25068), (3738, 20890), (4178, 18690), (5340, 14623), (6230, 12534), (6267, 12460), (7476, 10445), (8356, 9345)]