20805217202

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{811}}^1$

素因数の和:1128

約数の個数: 128

約数和(自身を含む): 42430832640

約数和(自身を除く): 21625615438

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 41, 77, 82, 119, 154, 187, 238, 239, 287, 374, 451, 478, 574, 697, 811, 902, 1309, 1394, 1622, 1673, 2618, 2629, 3157, 3346, 4063, 4879, 5258, 5677, 6314, 7667, 8126, 8921, 9758, 9799, 11354, 13787, 15334, 17842, 18403, 19598, 27574, 28441, 33251, 36806, 44693, 53669, 56882, 62447, 66502, 68593, 89386, 96509, 107338, 107789, 124894, 137186, 151657, 166583, 193018, 193829, 215578, 232757, 303314, 312851, 333166, 365761, 387658, 465514, 565267, 625702, 731522, 754523, 1061599, 1130534, 1166081, 1356803, 1509046, 1832413, 2123198, 2132119, 2332162, 2560327, 2713606, 3295093, 3664826, 3956869, 4264238, 5120654, 6217937, 6590186, 7913738, 7946989, 12435874, 12826891, 14924833, 15893978, 23065651, 25653782, 29849666, 36246023, 43525559, 46131302, 55628923, 72492046, 87051118, 87416879, 111257846, 135098813, 174833758, 253722161, 270197626, 507444322, 611918153, 945691691, 1223836306, 1486086943, 1891383382, 2972173886, 10402608601, 20805217202]

約数ペア:

[(1, 20805217202), (2, 10402608601), (7, 2972173886), (11, 1891383382), (14, 1486086943), (17, 1223836306), (22, 945691691), (34, 611918153), (41, 507444322), (77, 270197626), (82, 253722161), (119, 174833758), (154, 135098813), (187, 111257846), (238, 87416879), (239, 87051118), (287, 72492046), (374, 55628923), (451, 46131302), (478, 43525559), (574, 36246023), (697, 29849666), (811, 25653782), (902, 23065651), (1309, 15893978), (1394, 14924833), (1622, 12826891), (1673, 12435874), (2618, 7946989), (2629, 7913738), (3157, 6590186), (3346, 6217937), (4063, 5120654), (4879, 4264238), (5258, 3956869), (5677, 3664826), (6314, 3295093), (7667, 2713606), (8126, 2560327), (8921, 2332162), (9758, 2132119), (9799, 2123198), (11354, 1832413), (13787, 1509046), (15334, 1356803), (17842, 1166081), (18403, 1130534), (19598, 1061599), (27574, 754523), (28441, 731522), (33251, 625702), (36806, 565267), (44693, 465514), (53669, 387658), (56882, 365761), (62447, 333166), (66502, 312851), (68593, 303314), (89386, 232757), (96509, 215578), (107338, 193829), (107789, 193018), (124894, 166583), (137186, 151657)]