81056800

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:243

約数の個数: 144

約数和(自身を含む): 220860864

約数和(自身を除く): 139804064

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 61, 80, 88, 100, 110, 122, 151, 160, 176, 200, 220, 244, 275, 302, 305, 352, 400, 440, 488, 550, 604, 610, 671, 755, 800, 880, 976, 1100, 1208, 1220, 1342, 1510, 1525, 1661, 1760, 1952, 2200, 2416, 2440, 2684, 3020, 3050, 3322, 3355, 3775, 4400, 4832, 4880, 5368, 6040, 6100, 6644, 6710, 7550, 8305, 8800, 9211, 9760, 10736, 12080, 12200, 13288, 13420, 15100, 16610, 16775, 18422, 21472, 24160, 24400, 26576, 26840, 30200, 33220, 33550, 36844, 41525, 46055, 48800, 53152, 53680, 60400, 66440, 67100, 73688, 83050, 92110, 101321, 107360, 120800, 132880, 134200, 147376, 166100, 184220, 202642, 230275, 265760, 268400, 294752, 332200, 368440, 405284, 460550, 506605, 536800, 664400, 736880, 810568, 921100, 1013210, 1328800, 1473760, 1621136, 1842200, 2026420, 2533025, 3242272, 3684400, 4052840, 5066050, 7368800, 8105680, 10132100, 16211360, 20264200, 40528400, 81056800]

約数ペア:

[(1, 81056800), (2, 40528400), (4, 20264200), (5, 16211360), (8, 10132100), (10, 8105680), (11, 7368800), (16, 5066050), (20, 4052840), (22, 3684400), (25, 3242272), (32, 2533025), (40, 2026420), (44, 1842200), (50, 1621136), (55, 1473760), (61, 1328800), (80, 1013210), (88, 921100), (100, 810568), (110, 736880), (122, 664400), (151, 536800), (160, 506605), (176, 460550), (200, 405284), (220, 368440), (244, 332200), (275, 294752), (302, 268400), (305, 265760), (352, 230275), (400, 202642), (440, 184220), (488, 166100), (550, 147376), (604, 134200), (610, 132880), (671, 120800), (755, 107360), (800, 101321), (880, 92110), (976, 83050), (1100, 73688), (1208, 67100), (1220, 66440), (1342, 60400), (1510, 53680), (1525, 53152), (1661, 48800), (1760, 46055), (1952, 41525), (2200, 36844), (2416, 33550), (2440, 33220), (2684, 30200), (3020, 26840), (3050, 26576), (3322, 24400), (3355, 24160), (3775, 21472), (4400, 18422), (4832, 16775), (4880, 16610), (5368, 15100), (6040, 13420), (6100, 13288), (6644, 12200), (6710, 12080), (7550, 10736), (8305, 9760), (8800, 9211)]