21250016400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{18427}}^1$

素因数の和:18510

約数の個数: 180

約数和(自身を含む): 70341371376

約数和(自身を除く): 49091354976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 31, 40, 48, 50, 60, 62, 75, 80, 93, 100, 120, 124, 150, 155, 186, 200, 240, 248, 300, 310, 372, 400, 465, 496, 600, 620, 744, 775, 930, 961, 1200, 1240, 1488, 1550, 1860, 1922, 2325, 2480, 2883, 3100, 3720, 3844, 4650, 4805, 5766, 6200, 7440, 7688, 9300, 9610, 11532, 12400, 14415, 15376, 18427, 18600, 19220, 23064, 24025, 28830, 36854, 37200, 38440, 46128, 48050, 55281, 57660, 72075, 73708, 76880, 92135, 96100, 110562, 115320, 144150, 147416, 184270, 192200, 221124, 230640, 276405, 288300, 294832, 368540, 384400, 442248, 460675, 552810, 571237, 576600, 737080, 884496, 921350, 1105620, 1142474, 1153200, 1382025, 1474160, 1713711, 1842700, 2211240, 2284948, 2764050, 2856185, 3427422, 3685400, 4422480, 4569896, 5528100, 5712370, 6854844, 7370800, 8568555, 9139792, 11056200, 11424740, 13709688, 14280925, 17137110, 17708347, 22112400, 22849480, 27419376, 28561850, 34274220, 35416694, 42842775, 45698960, 53125041, 57123700, 68548440, 70833388, 85685550, 88541735, 106250082, 114247400, 137096880, 141666776, 171371100, 177083470, 212500164, 228494800, 265625205, 283333552, 342742200, 354166940, 425000328, 442708675, 531250410, 685484400, 708333880, 850000656, 885417350, 1062500820, 1328126025, 1416667760, 1770834700, 2125001640, 2656252050, 3541669400, 4250003280, 5312504100, 7083338800, 10625008200, 21250016400]

約数ペア:

[(1, 21250016400), (2, 10625008200), (3, 7083338800), (4, 5312504100), (5, 4250003280), (6, 3541669400), (8, 2656252050), (10, 2125001640), (12, 1770834700), (15, 1416667760), (16, 1328126025), (20, 1062500820), (24, 885417350), (25, 850000656), (30, 708333880), (31, 685484400), (40, 531250410), (48, 442708675), (50, 425000328), (60, 354166940), (62, 342742200), (75, 283333552), (80, 265625205), (93, 228494800), (100, 212500164), (120, 177083470), (124, 171371100), (150, 141666776), (155, 137096880), (186, 114247400), (200, 106250082), (240, 88541735), (248, 85685550), (300, 70833388), (310, 68548440), (372, 57123700), (400, 53125041), (465, 45698960), (496, 42842775), (600, 35416694), (620, 34274220), (744, 28561850), (775, 27419376), (930, 22849480), (961, 22112400), (1200, 17708347), (1240, 17137110), (1488, 14280925), (1550, 13709688), (1860, 11424740), (1922, 11056200), (2325, 9139792), (2480, 8568555), (2883, 7370800), (3100, 6854844), (3720, 5712370), (3844, 5528100), (4650, 4569896), (4805, 4422480), (5766, 3685400), (6200, 3427422), (7440, 2856185), (7688, 2764050), (9300, 2284948), (9610, 2211240), (11532, 1842700), (12400, 1713711), (14415, 1474160), (15376, 1382025), (18427, 1153200), (18600, 1142474), (19220, 1105620), (23064, 921350), (24025, 884496), (28830, 737080), (36854, 576600), (37200, 571237), (38440, 552810), (46128, 460675), (48050, 442248), (55281, 384400), (57660, 368540), (72075, 294832), (73708, 288300), (76880, 276405), (92135, 230640), (96100, 221124), (110562, 192200), (115320, 184270), (144150, 147416)]