68401900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:216

約数の個数: 144

約数和(自身を含む): 184710400

約数和(自身を除く): 116308500

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 37, 38, 50, 70, 74, 76, 95, 100, 133, 139, 140, 148, 175, 185, 190, 259, 266, 278, 350, 370, 380, 475, 518, 532, 556, 665, 695, 700, 703, 740, 925, 950, 973, 1036, 1295, 1330, 1390, 1406, 1850, 1900, 1946, 2590, 2641, 2660, 2780, 2812, 3325, 3475, 3515, 3700, 3892, 4865, 4921, 5143, 5180, 5282, 6475, 6650, 6950, 7030, 9730, 9842, 10286, 10564, 12950, 13205, 13300, 13900, 14060, 17575, 18487, 19460, 19684, 20572, 24325, 24605, 25715, 25900, 26410, 35150, 36001, 36974, 48650, 49210, 51430, 52820, 66025, 70300, 72002, 73948, 92435, 97300, 97717, 98420, 102860, 123025, 128575, 132050, 144004, 180005, 184870, 195434, 246050, 257150, 264100, 360010, 369740, 390868, 462175, 488585, 492100, 514300, 684019, 720020, 900025, 924350, 977170, 1368038, 1800050, 1848700, 1954340, 2442925, 2736076, 3420095, 3600100, 4885850, 6840190, 9771700, 13680380, 17100475, 34200950, 68401900]

約数ペア:

[(1, 68401900), (2, 34200950), (4, 17100475), (5, 13680380), (7, 9771700), (10, 6840190), (14, 4885850), (19, 3600100), (20, 3420095), (25, 2736076), (28, 2442925), (35, 1954340), (37, 1848700), (38, 1800050), (50, 1368038), (70, 977170), (74, 924350), (76, 900025), (95, 720020), (100, 684019), (133, 514300), (139, 492100), (140, 488585), (148, 462175), (175, 390868), (185, 369740), (190, 360010), (259, 264100), (266, 257150), (278, 246050), (350, 195434), (370, 184870), (380, 180005), (475, 144004), (518, 132050), (532, 128575), (556, 123025), (665, 102860), (695, 98420), (700, 97717), (703, 97300), (740, 92435), (925, 73948), (950, 72002), (973, 70300), (1036, 66025), (1295, 52820), (1330, 51430), (1390, 49210), (1406, 48650), (1850, 36974), (1900, 36001), (1946, 35150), (2590, 26410), (2641, 25900), (2660, 25715), (2780, 24605), (2812, 24325), (3325, 20572), (3475, 19684), (3515, 19460), (3700, 18487), (3892, 17575), (4865, 14060), (4921, 13900), (5143, 13300), (5180, 13205), (5282, 12950), (6475, 10564), (6650, 10286), (6950, 9842), (7030, 9730)]