81989600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{11}}^4$

素因数の和:71

約数の個数: 180

約数和(自身を含む): 251624520

約数和(自身を除く): 169634920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 32, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 121, 140, 154, 160, 175, 176, 200, 220, 224, 242, 275, 280, 308, 350, 352, 385, 400, 440, 484, 550, 560, 605, 616, 700, 770, 800, 847, 880, 968, 1100, 1120, 1210, 1232, 1331, 1400, 1540, 1694, 1760, 1925, 1936, 2200, 2420, 2464, 2662, 2800, 3025, 3080, 3388, 3850, 3872, 4235, 4400, 4840, 5324, 5600, 6050, 6160, 6655, 6776, 7700, 8470, 8800, 9317, 9680, 10648, 12100, 12320, 13310, 13552, 14641, 15400, 16940, 18634, 19360, 21175, 21296, 24200, 26620, 27104, 29282, 30800, 33275, 33880, 37268, 42350, 42592, 46585, 48400, 53240, 58564, 61600, 66550, 67760, 73205, 74536, 84700, 93170, 96800, 102487, 106480, 117128, 133100, 135520, 146410, 149072, 169400, 186340, 204974, 212960, 232925, 234256, 266200, 292820, 298144, 338800, 366025, 372680, 409948, 465850, 468512, 512435, 532400, 585640, 677600, 732050, 745360, 819896, 931700, 1024870, 1064800, 1171280, 1464100, 1490720, 1639792, 1863400, 2049740, 2342560, 2562175, 2928200, 3279584, 3726800, 4099480, 5124350, 5856400, 7453600, 8198960, 10248700, 11712800, 16397920, 20497400, 40994800, 81989600]

約数ペア:

[(1, 81989600), (2, 40994800), (4, 20497400), (5, 16397920), (7, 11712800), (8, 10248700), (10, 8198960), (11, 7453600), (14, 5856400), (16, 5124350), (20, 4099480), (22, 3726800), (25, 3279584), (28, 2928200), (32, 2562175), (35, 2342560), (40, 2049740), (44, 1863400), (50, 1639792), (55, 1490720), (56, 1464100), (70, 1171280), (77, 1064800), (80, 1024870), (88, 931700), (100, 819896), (110, 745360), (112, 732050), (121, 677600), (140, 585640), (154, 532400), (160, 512435), (175, 468512), (176, 465850), (200, 409948), (220, 372680), (224, 366025), (242, 338800), (275, 298144), (280, 292820), (308, 266200), (350, 234256), (352, 232925), (385, 212960), (400, 204974), (440, 186340), (484, 169400), (550, 149072), (560, 146410), (605, 135520), (616, 133100), (700, 117128), (770, 106480), (800, 102487), (847, 96800), (880, 93170), (968, 84700), (1100, 74536), (1120, 73205), (1210, 67760), (1232, 66550), (1331, 61600), (1400, 58564), (1540, 53240), (1694, 48400), (1760, 46585), (1925, 42592), (1936, 42350), (2200, 37268), (2420, 33880), (2464, 33275), (2662, 30800), (2800, 29282), (3025, 27104), (3080, 26620), (3388, 24200), (3850, 21296), (3872, 21175), (4235, 19360), (4400, 18634), (4840, 16940), (5324, 15400), (5600, 14641), (6050, 13552), (6160, 13310), (6655, 12320), (6776, 12100), (7700, 10648), (8470, 9680), (8800, 9317)]