20154806980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{797}}^1\times {\mathrm{16421}}^1$

素因数の和:17245

約数の個数: 96

約数和(自身を含む): 52838376192

約数和(自身を除く): 32683569212

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 797, 1540, 1594, 3188, 3985, 5579, 7970, 8767, 11158, 15940, 16421, 17534, 22316, 27895, 32842, 35068, 43835, 55790, 61369, 65684, 82105, 87670, 111580, 114947, 122738, 164210, 175340, 180631, 229894, 245476, 306845, 328420, 361262, 459788, 574735, 613690, 722524, 903155, 1149470, 1227380, 1264417, 1806310, 2298940, 2528834, 3612620, 5057668, 6322085, 12644170, 13087537, 25288340, 26175074, 52350148, 65437685, 91612759, 130875370, 143962907, 183225518, 261750740, 287925814, 366451036, 458063795, 575851628, 719814535, 916127590, 1007740349, 1439629070, 1832255180, 2015480698, 2879258140, 4030961396, 5038701745, 10077403490, 20154806980]

約数ペア:

[(1, 20154806980), (2, 10077403490), (4, 5038701745), (5, 4030961396), (7, 2879258140), (10, 2015480698), (11, 1832255180), (14, 1439629070), (20, 1007740349), (22, 916127590), (28, 719814535), (35, 575851628), (44, 458063795), (55, 366451036), (70, 287925814), (77, 261750740), (110, 183225518), (140, 143962907), (154, 130875370), (220, 91612759), (308, 65437685), (385, 52350148), (770, 26175074), (797, 25288340), (1540, 13087537), (1594, 12644170), (3188, 6322085), (3985, 5057668), (5579, 3612620), (7970, 2528834), (8767, 2298940), (11158, 1806310), (15940, 1264417), (16421, 1227380), (17534, 1149470), (22316, 903155), (27895, 722524), (32842, 613690), (35068, 574735), (43835, 459788), (55790, 361262), (61369, 328420), (65684, 306845), (82105, 245476), (87670, 229894), (111580, 180631), (114947, 175340), (122738, 164210)]