78017800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:468

約数の個数: 144

約数和(自身を含む): 222642000

約数和(自身を除く): 144624200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 35, 38, 40, 49, 50, 56, 70, 76, 95, 98, 100, 133, 140, 152, 175, 190, 196, 200, 245, 266, 280, 350, 380, 392, 419, 475, 490, 532, 665, 700, 760, 838, 931, 950, 980, 1064, 1225, 1330, 1400, 1676, 1862, 1900, 1960, 2095, 2450, 2660, 2933, 3325, 3352, 3724, 3800, 4190, 4655, 4900, 5320, 5866, 6650, 7448, 7961, 8380, 9310, 9800, 10475, 11732, 13300, 14665, 15922, 16760, 18620, 20531, 20950, 23275, 23464, 26600, 29330, 31844, 37240, 39805, 41062, 41900, 46550, 55727, 58660, 63688, 73325, 79610, 82124, 83800, 93100, 102655, 111454, 117320, 146650, 159220, 164248, 186200, 199025, 205310, 222908, 278635, 293300, 318440, 390089, 398050, 410620, 445816, 513275, 557270, 586600, 780178, 796100, 821240, 1026550, 1114540, 1393175, 1560356, 1592200, 1950445, 2053100, 2229080, 2786350, 3120712, 3900890, 4106200, 5572700, 7801780, 9752225, 11145400, 15603560, 19504450, 39008900, 78017800]

約数ペア:

[(1, 78017800), (2, 39008900), (4, 19504450), (5, 15603560), (7, 11145400), (8, 9752225), (10, 7801780), (14, 5572700), (19, 4106200), (20, 3900890), (25, 3120712), (28, 2786350), (35, 2229080), (38, 2053100), (40, 1950445), (49, 1592200), (50, 1560356), (56, 1393175), (70, 1114540), (76, 1026550), (95, 821240), (98, 796100), (100, 780178), (133, 586600), (140, 557270), (152, 513275), (175, 445816), (190, 410620), (196, 398050), (200, 390089), (245, 318440), (266, 293300), (280, 278635), (350, 222908), (380, 205310), (392, 199025), (419, 186200), (475, 164248), (490, 159220), (532, 146650), (665, 117320), (700, 111454), (760, 102655), (838, 93100), (931, 83800), (950, 82124), (980, 79610), (1064, 73325), (1225, 63688), (1330, 58660), (1400, 55727), (1676, 46550), (1862, 41900), (1900, 41062), (1960, 39805), (2095, 37240), (2450, 31844), (2660, 29330), (2933, 26600), (3325, 23464), (3352, 23275), (3724, 20950), (3800, 20531), (4190, 18620), (4655, 16760), (4900, 15922), (5320, 14665), (5866, 13300), (6650, 11732), (7448, 10475), (7961, 9800), (8380, 9310)]