18620000

素因数分解:

$2^5\times 5^4\times 7^2\times {\mathrm{19}}^1$

素因数の和:63

約数の個数: 180

約数和(自身を含む): 56091420

約数和(自身を除く): 37471420

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 25, 28, 32, 35, 38, 40, 49, 50, 56, 70, 76, 80, 95, 98, 100, 112, 125, 133, 140, 152, 160, 175, 190, 196, 200, 224, 245, 250, 266, 280, 304, 350, 380, 392, 400, 475, 490, 500, 532, 560, 608, 625, 665, 700, 760, 784, 800, 875, 931, 950, 980, 1000, 1064, 1120, 1225, 1250, 1330, 1400, 1520, 1568, 1750, 1862, 1900, 1960, 2000, 2128, 2375, 2450, 2500, 2660, 2800, 3040, 3325, 3500, 3724, 3800, 3920, 4000, 4256, 4375, 4655, 4750, 4900, 5000, 5320, 5600, 6125, 6650, 7000, 7448, 7600, 7840, 8750, 9310, 9500, 9800, 10000, 10640, 11875, 12250, 13300, 14000, 14896, 15200, 16625, 17500, 18620, 19000, 19600, 20000, 21280, 23275, 23750, 24500, 26600, 28000, 29792, 30625, 33250, 35000, 37240, 38000, 39200, 46550, 47500, 49000, 53200, 61250, 66500, 70000, 74480, 76000, 83125, 93100, 95000, 98000, 106400, 116375, 122500, 133000, 140000, 148960, 166250, 186200, 190000, 196000, 232750, 245000, 266000, 332500, 372400, 380000, 465500, 490000, 532000, 581875, 665000, 744800, 931000, 980000, 1163750, 1330000, 1862000, 2327500, 2660000, 3724000, 4655000, 9310000, 18620000]

約数ペア:

[(1, 18620000), (2, 9310000), (4, 4655000), (5, 3724000), (7, 2660000), (8, 2327500), (10, 1862000), (14, 1330000), (16, 1163750), (19, 980000), (20, 931000), (25, 744800), (28, 665000), (32, 581875), (35, 532000), (38, 490000), (40, 465500), (49, 380000), (50, 372400), (56, 332500), (70, 266000), (76, 245000), (80, 232750), (95, 196000), (98, 190000), (100, 186200), (112, 166250), (125, 148960), (133, 140000), (140, 133000), (152, 122500), (160, 116375), (175, 106400), (190, 98000), (196, 95000), (200, 93100), (224, 83125), (245, 76000), (250, 74480), (266, 70000), (280, 66500), (304, 61250), (350, 53200), (380, 49000), (392, 47500), (400, 46550), (475, 39200), (490, 38000), (500, 37240), (532, 35000), (560, 33250), (608, 30625), (625, 29792), (665, 28000), (700, 26600), (760, 24500), (784, 23750), (800, 23275), (875, 21280), (931, 20000), (950, 19600), (980, 19000), (1000, 18620), (1064, 17500), (1120, 16625), (1225, 15200), (1250, 14896), (1330, 14000), (1400, 13300), (1520, 12250), (1568, 11875), (1750, 10640), (1862, 10000), (1900, 9800), (1960, 9500), (2000, 9310), (2128, 8750), (2375, 7840), (2450, 7600), (2500, 7448), (2660, 7000), (2800, 6650), (3040, 6125), (3325, 5600), (3500, 5320), (3724, 5000), (3800, 4900), (3920, 4750), (4000, 4655), (4256, 4375)]