20248320680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1\times {\mathrm{6863}}^1$

素因数の和:7179

約数の個数: 128

約数和(自身を含む): 53552378880

約数和(自身を除く): 33304058200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 257, 280, 287, 328, 410, 514, 574, 820, 1028, 1148, 1285, 1435, 1640, 1799, 2056, 2296, 2570, 2870, 3598, 5140, 5740, 6863, 7196, 8995, 10280, 10537, 11480, 13726, 14392, 17990, 21074, 27452, 34315, 35980, 42148, 48041, 52685, 54904, 68630, 71960, 73759, 84296, 96082, 105370, 137260, 147518, 192164, 210740, 240205, 274520, 281383, 295036, 368795, 384328, 421480, 480410, 562766, 590072, 737590, 960820, 1125532, 1406915, 1475180, 1763791, 1921640, 1969681, 2251064, 2813830, 2950360, 3527582, 3939362, 5627660, 7055164, 7878724, 8818955, 9848405, 11255320, 12346537, 14110328, 15757448, 17637910, 19696810, 24693074, 35275820, 39393620, 49386148, 61732685, 70551640, 72315431, 78787240, 98772296, 123465370, 144630862, 246930740, 289261724, 361577155, 493861480, 506208017, 578523448, 723154310, 1012416034, 1446308620, 2024832068, 2531040085, 2892617240, 4049664136, 5062080170, 10124160340, 20248320680]

約数ペア:

[(1, 20248320680), (2, 10124160340), (4, 5062080170), (5, 4049664136), (7, 2892617240), (8, 2531040085), (10, 2024832068), (14, 1446308620), (20, 1012416034), (28, 723154310), (35, 578523448), (40, 506208017), (41, 493861480), (56, 361577155), (70, 289261724), (82, 246930740), (140, 144630862), (164, 123465370), (205, 98772296), (257, 78787240), (280, 72315431), (287, 70551640), (328, 61732685), (410, 49386148), (514, 39393620), (574, 35275820), (820, 24693074), (1028, 19696810), (1148, 17637910), (1285, 15757448), (1435, 14110328), (1640, 12346537), (1799, 11255320), (2056, 9848405), (2296, 8818955), (2570, 7878724), (2870, 7055164), (3598, 5627660), (5140, 3939362), (5740, 3527582), (6863, 2950360), (7196, 2813830), (8995, 2251064), (10280, 1969681), (10537, 1921640), (11480, 1763791), (13726, 1475180), (14392, 1406915), (17990, 1125532), (21074, 960820), (27452, 737590), (34315, 590072), (35980, 562766), (42148, 480410), (48041, 421480), (52685, 384328), (54904, 368795), (68630, 295036), (71960, 281383), (73759, 274520), (84296, 240205), (96082, 210740), (105370, 192164), (137260, 147518)]