1990942170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{3929}}^1$

素因数の和:4092

約数の個数: 128

約数和(自身を含む): 5795020800

約数和(自身を除く): 3804078630

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 127, 133, 190, 210, 254, 266, 285, 381, 399, 570, 635, 665, 762, 798, 889, 1270, 1330, 1778, 1905, 1995, 2413, 2667, 3810, 3929, 3990, 4445, 4826, 5334, 7239, 7858, 8890, 11787, 12065, 13335, 14478, 16891, 19645, 23574, 24130, 26670, 27503, 33782, 36195, 39290, 50673, 55006, 58935, 72390, 74651, 82509, 84455, 101346, 117870, 137515, 149302, 165018, 168910, 223953, 253365, 275030, 373255, 412545, 447906, 498983, 506730, 522557, 746510, 825090, 997966, 1045114, 1119765, 1496949, 1567671, 2239530, 2494915, 2612785, 2993898, 3135342, 3492881, 4989830, 5225570, 6985762, 7484745, 7838355, 9480677, 10478643, 14969490, 15676710, 17464405, 18961354, 20957286, 28442031, 34928810, 47403385, 52393215, 56884062, 66364739, 94806770, 104786430, 132729478, 142210155, 199094217, 284420310, 331823695, 398188434, 663647390, 995471085, 1990942170]

約数ペア:

[(1, 1990942170), (2, 995471085), (3, 663647390), (5, 398188434), (6, 331823695), (7, 284420310), (10, 199094217), (14, 142210155), (15, 132729478), (19, 104786430), (21, 94806770), (30, 66364739), (35, 56884062), (38, 52393215), (42, 47403385), (57, 34928810), (70, 28442031), (95, 20957286), (105, 18961354), (114, 17464405), (127, 15676710), (133, 14969490), (190, 10478643), (210, 9480677), (254, 7838355), (266, 7484745), (285, 6985762), (381, 5225570), (399, 4989830), (570, 3492881), (635, 3135342), (665, 2993898), (762, 2612785), (798, 2494915), (889, 2239530), (1270, 1567671), (1330, 1496949), (1778, 1119765), (1905, 1045114), (1995, 997966), (2413, 825090), (2667, 746510), (3810, 522557), (3929, 506730), (3990, 498983), (4445, 447906), (4826, 412545), (5334, 373255), (7239, 275030), (7858, 253365), (8890, 223953), (11787, 168910), (12065, 165018), (13335, 149302), (14478, 137515), (16891, 117870), (19645, 101346), (23574, 84455), (24130, 82509), (26670, 74651), (27503, 72390), (33782, 58935), (36195, 55006), (39290, 50673)]