405779920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:573

約数の個数: 160

約数和(自身を含む): 1172424960

約数和(自身を除く): 766645040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 139, 140, 182, 208, 260, 278, 280, 364, 401, 455, 520, 556, 560, 695, 728, 802, 910, 973, 1040, 1112, 1390, 1456, 1604, 1807, 1820, 1946, 2005, 2224, 2780, 2807, 3208, 3614, 3640, 3892, 4010, 4865, 5213, 5560, 5614, 6416, 7228, 7280, 7784, 8020, 9035, 9730, 10426, 11120, 11228, 12649, 14035, 14456, 15568, 16040, 18070, 19460, 20852, 22456, 25298, 26065, 28070, 28912, 32080, 36140, 36491, 38920, 41704, 44912, 50596, 52130, 55739, 56140, 63245, 72280, 72982, 77840, 83408, 101192, 104260, 111478, 112280, 126490, 144560, 145964, 182455, 202384, 208520, 222956, 224560, 252980, 278695, 291928, 364910, 390173, 417040, 445912, 505960, 557390, 583856, 724607, 729820, 780346, 891824, 1011920, 1114780, 1449214, 1459640, 1560692, 1950865, 2229560, 2898428, 2919280, 3121384, 3623035, 3901730, 4459120, 5072249, 5796856, 6242768, 7246070, 7803460, 10144498, 11593712, 14492140, 15606920, 20288996, 25361245, 28984280, 31213840, 40577992, 50722490, 57968560, 81155984, 101444980, 202889960, 405779920]

約数ペア:

[(1, 405779920), (2, 202889960), (4, 101444980), (5, 81155984), (7, 57968560), (8, 50722490), (10, 40577992), (13, 31213840), (14, 28984280), (16, 25361245), (20, 20288996), (26, 15606920), (28, 14492140), (35, 11593712), (40, 10144498), (52, 7803460), (56, 7246070), (65, 6242768), (70, 5796856), (80, 5072249), (91, 4459120), (104, 3901730), (112, 3623035), (130, 3121384), (139, 2919280), (140, 2898428), (182, 2229560), (208, 1950865), (260, 1560692), (278, 1459640), (280, 1449214), (364, 1114780), (401, 1011920), (455, 891824), (520, 780346), (556, 729820), (560, 724607), (695, 583856), (728, 557390), (802, 505960), (910, 445912), (973, 417040), (1040, 390173), (1112, 364910), (1390, 291928), (1456, 278695), (1604, 252980), (1807, 224560), (1820, 222956), (1946, 208520), (2005, 202384), (2224, 182455), (2780, 145964), (2807, 144560), (3208, 126490), (3614, 112280), (3640, 111478), (3892, 104260), (4010, 101192), (4865, 83408), (5213, 77840), (5560, 72982), (5614, 72280), (6416, 63245), (7228, 56140), (7280, 55739), (7784, 52130), (8020, 50596), (9035, 44912), (9730, 41704), (10426, 38920), (11120, 36491), (11228, 36140), (12649, 32080), (14035, 28912), (14456, 28070), (15568, 26065), (16040, 25298), (18070, 22456), (19460, 20852)]