20270800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1$

素因数の和:317

約数の個数: 120

約数和(自身を含む): 56460672

約数和(自身を除く): 36189872

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 25, 34, 40, 44, 50, 55, 68, 80, 85, 88, 100, 110, 136, 170, 176, 187, 200, 220, 271, 272, 275, 340, 374, 400, 425, 440, 542, 550, 680, 748, 850, 880, 935, 1084, 1100, 1355, 1360, 1496, 1700, 1870, 2168, 2200, 2710, 2981, 2992, 3400, 3740, 4336, 4400, 4607, 4675, 5420, 5962, 6775, 6800, 7480, 9214, 9350, 10840, 11924, 13550, 14905, 14960, 18428, 18700, 21680, 23035, 23848, 27100, 29810, 36856, 37400, 46070, 47696, 50677, 54200, 59620, 73712, 74525, 74800, 92140, 101354, 108400, 115175, 119240, 149050, 184280, 202708, 230350, 238480, 253385, 298100, 368560, 405416, 460700, 506770, 596200, 810832, 921400, 1013540, 1192400, 1266925, 1842800, 2027080, 2533850, 4054160, 5067700, 10135400, 20270800]

約数ペア:

[(1, 20270800), (2, 10135400), (4, 5067700), (5, 4054160), (8, 2533850), (10, 2027080), (11, 1842800), (16, 1266925), (17, 1192400), (20, 1013540), (22, 921400), (25, 810832), (34, 596200), (40, 506770), (44, 460700), (50, 405416), (55, 368560), (68, 298100), (80, 253385), (85, 238480), (88, 230350), (100, 202708), (110, 184280), (136, 149050), (170, 119240), (176, 115175), (187, 108400), (200, 101354), (220, 92140), (271, 74800), (272, 74525), (275, 73712), (340, 59620), (374, 54200), (400, 50677), (425, 47696), (440, 46070), (542, 37400), (550, 36856), (680, 29810), (748, 27100), (850, 23848), (880, 23035), (935, 21680), (1084, 18700), (1100, 18428), (1355, 14960), (1360, 14905), (1496, 13550), (1700, 11924), (1870, 10840), (2168, 9350), (2200, 9214), (2710, 7480), (2981, 6800), (2992, 6775), (3400, 5962), (3740, 5420), (4336, 4675), (4400, 4607)]