20115810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:561

約数の個数: 128

約数和(自身を含む): 63141120

約数和(自身を除く): 43025310

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 22, 26, 27, 30, 33, 39, 45, 54, 55, 65, 66, 78, 90, 99, 110, 117, 130, 135, 143, 165, 195, 198, 234, 270, 286, 297, 330, 351, 390, 429, 495, 521, 585, 594, 702, 715, 858, 990, 1042, 1170, 1287, 1430, 1485, 1563, 1755, 2145, 2574, 2605, 2970, 3126, 3510, 3861, 4290, 4689, 5210, 5731, 6435, 6773, 7722, 7815, 9378, 11462, 12870, 13546, 14067, 15630, 17193, 19305, 20319, 23445, 28134, 28655, 33865, 34386, 38610, 40638, 46890, 51579, 57310, 60957, 67730, 70335, 74503, 85965, 101595, 103158, 121914, 140670, 149006, 154737, 171930, 182871, 203190, 223509, 257895, 304785, 309474, 365742, 372515, 447018, 515790, 609570, 670527, 745030, 773685, 914355, 1117545, 1341054, 1547370, 1828710, 2011581, 2235090, 3352635, 4023162, 6705270, 10057905, 20115810]

約数ペア:

[(1, 20115810), (2, 10057905), (3, 6705270), (5, 4023162), (6, 3352635), (9, 2235090), (10, 2011581), (11, 1828710), (13, 1547370), (15, 1341054), (18, 1117545), (22, 914355), (26, 773685), (27, 745030), (30, 670527), (33, 609570), (39, 515790), (45, 447018), (54, 372515), (55, 365742), (65, 309474), (66, 304785), (78, 257895), (90, 223509), (99, 203190), (110, 182871), (117, 171930), (130, 154737), (135, 149006), (143, 140670), (165, 121914), (195, 103158), (198, 101595), (234, 85965), (270, 74503), (286, 70335), (297, 67730), (330, 60957), (351, 57310), (390, 51579), (429, 46890), (495, 40638), (521, 38610), (585, 34386), (594, 33865), (702, 28655), (715, 28134), (858, 23445), (990, 20319), (1042, 19305), (1170, 17193), (1287, 15630), (1430, 14067), (1485, 13546), (1563, 12870), (1755, 11462), (2145, 9378), (2574, 7815), (2605, 7722), (2970, 6773), (3126, 6435), (3510, 5731), (3861, 5210), (4290, 4689)]