20888915325

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:312

約数の個数: 192

約数和(自身を含む): 39243916800

約数和(自身を除く): 18355001475

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 71, 73, 75, 85, 87, 109, 145, 213, 219, 255, 327, 355, 365, 425, 435, 493, 545, 725, 1065, 1095, 1207, 1241, 1275, 1479, 1635, 1775, 1825, 1853, 2059, 2117, 2175, 2465, 2725, 3161, 3621, 3723, 5183, 5325, 5475, 5559, 6035, 6177, 6205, 6351, 7395, 7739, 7957, 8175, 9265, 9483, 10295, 10585, 12325, 15549, 15805, 18105, 18615, 23217, 23871, 25915, 27795, 30175, 30885, 31025, 31755, 35003, 35989, 36975, 38695, 39785, 46325, 47415, 51475, 52925, 53737, 77745, 79025, 88111, 90525, 93075, 105009, 107967, 116085, 119355, 129575, 131563, 135269, 138975, 150307, 154425, 158775, 161211, 175015, 179945, 193475, 198925, 224431, 230753, 237075, 264333, 268685, 388725, 394689, 405807, 440555, 450921, 525045, 539835, 564947, 580425, 596775, 657815, 673293, 676345, 692259, 751535, 806055, 875075, 899725, 1122155, 1153765, 1321665, 1343425, 1694841, 1973445, 2029035, 2202775, 2254605, 2555219, 2625225, 2699175, 2824735, 3289075, 3366465, 3381725, 3461295, 3757675, 3815327, 3922801, 4030275, 5610775, 5768825, 6608325, 7665657, 8474205, 9604099, 9867225, 10145175, 11273025, 11445981, 11768403, 12776095, 14123675, 16383463, 16832325, 17306475, 19076635, 19614005, 28812297, 38328285, 42371025, 48020495, 49150389, 57229905, 58842015, 63880475, 81917315, 95383175, 98070025, 144061485, 191641425, 240102475, 245751945, 278518871, 286149525, 294210075, 409586575, 720307425, 835556613, 1228759725, 1392594355, 4177783065, 6962971775, 20888915325]

約数ペア:

[(1, 20888915325), (3, 6962971775), (5, 4177783065), (15, 1392594355), (17, 1228759725), (25, 835556613), (29, 720307425), (51, 409586575), (71, 294210075), (73, 286149525), (75, 278518871), (85, 245751945), (87, 240102475), (109, 191641425), (145, 144061485), (213, 98070025), (219, 95383175), (255, 81917315), (327, 63880475), (355, 58842015), (365, 57229905), (425, 49150389), (435, 48020495), (493, 42371025), (545, 38328285), (725, 28812297), (1065, 19614005), (1095, 19076635), (1207, 17306475), (1241, 16832325), (1275, 16383463), (1479, 14123675), (1635, 12776095), (1775, 11768403), (1825, 11445981), (1853, 11273025), (2059, 10145175), (2117, 9867225), (2175, 9604099), (2465, 8474205), (2725, 7665657), (3161, 6608325), (3621, 5768825), (3723, 5610775), (5183, 4030275), (5325, 3922801), (5475, 3815327), (5559, 3757675), (6035, 3461295), (6177, 3381725), (6205, 3366465), (6351, 3289075), (7395, 2824735), (7739, 2699175), (7957, 2625225), (8175, 2555219), (9265, 2254605), (9483, 2202775), (10295, 2029035), (10585, 1973445), (12325, 1694841), (15549, 1343425), (15805, 1321665), (18105, 1153765), (18615, 1122155), (23217, 899725), (23871, 875075), (25915, 806055), (27795, 751535), (30175, 692259), (30885, 676345), (31025, 673293), (31755, 657815), (35003, 596775), (35989, 580425), (36975, 564947), (38695, 539835), (39785, 525045), (46325, 450921), (47415, 440555), (51475, 405807), (52925, 394689), (53737, 388725), (77745, 268685), (79025, 264333), (88111, 237075), (90525, 230753), (93075, 224431), (105009, 198925), (107967, 193475), (116085, 179945), (119355, 175015), (129575, 161211), (131563, 158775), (135269, 154425), (138975, 150307)]