78723400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:336

約数の個数: 144

約数和(自身を含む): 221051700

約数和(自身を除く): 142328300

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 29, 35, 40, 49, 50, 56, 58, 70, 98, 100, 116, 140, 145, 175, 196, 200, 203, 232, 245, 277, 280, 290, 350, 392, 406, 490, 554, 580, 700, 725, 812, 980, 1015, 1108, 1160, 1225, 1385, 1400, 1421, 1450, 1624, 1939, 1960, 2030, 2216, 2450, 2770, 2842, 2900, 3878, 4060, 4900, 5075, 5540, 5684, 5800, 6925, 7105, 7756, 8033, 8120, 9695, 9800, 10150, 11080, 11368, 13573, 13850, 14210, 15512, 16066, 19390, 20300, 27146, 27700, 28420, 32132, 35525, 38780, 40165, 40600, 48475, 54292, 55400, 56231, 56840, 64264, 67865, 71050, 77560, 80330, 96950, 108584, 112462, 135730, 142100, 160660, 193900, 200825, 224924, 271460, 281155, 284200, 321320, 339325, 387800, 393617, 401650, 449848, 542920, 562310, 678650, 787234, 803300, 1124620, 1357300, 1405775, 1574468, 1606600, 1968085, 2249240, 2714600, 2811550, 3148936, 3936170, 5623100, 7872340, 9840425, 11246200, 15744680, 19680850, 39361700, 78723400]

約数ペア:

[(1, 78723400), (2, 39361700), (4, 19680850), (5, 15744680), (7, 11246200), (8, 9840425), (10, 7872340), (14, 5623100), (20, 3936170), (25, 3148936), (28, 2811550), (29, 2714600), (35, 2249240), (40, 1968085), (49, 1606600), (50, 1574468), (56, 1405775), (58, 1357300), (70, 1124620), (98, 803300), (100, 787234), (116, 678650), (140, 562310), (145, 542920), (175, 449848), (196, 401650), (200, 393617), (203, 387800), (232, 339325), (245, 321320), (277, 284200), (280, 281155), (290, 271460), (350, 224924), (392, 200825), (406, 193900), (490, 160660), (554, 142100), (580, 135730), (700, 112462), (725, 108584), (812, 96950), (980, 80330), (1015, 77560), (1108, 71050), (1160, 67865), (1225, 64264), (1385, 56840), (1400, 56231), (1421, 55400), (1450, 54292), (1624, 48475), (1939, 40600), (1960, 40165), (2030, 38780), (2216, 35525), (2450, 32132), (2770, 28420), (2842, 27700), (2900, 27146), (3878, 20300), (4060, 19390), (4900, 16066), (5075, 15512), (5540, 14210), (5684, 13850), (5800, 13573), (6925, 11368), (7105, 11080), (7756, 10150), (8033, 9800), (8120, 9695)]