20879234080

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{1283}}^1$

素因数の和:1539

約数の個数: 192

約数和(自身を含む): 54235173888

約数和(自身を除く): 33355939808

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 68, 80, 85, 124, 136, 155, 160, 170, 193, 248, 272, 310, 340, 386, 496, 527, 544, 620, 680, 772, 965, 992, 1054, 1240, 1283, 1360, 1544, 1930, 2108, 2480, 2566, 2635, 2720, 3088, 3281, 3860, 4216, 4960, 5132, 5270, 5983, 6176, 6415, 6562, 7720, 8432, 10264, 10540, 11966, 12830, 13124, 15440, 16405, 16864, 20528, 21080, 21811, 23932, 25660, 26248, 29915, 30880, 32810, 39773, 41056, 42160, 43622, 47864, 51320, 52496, 59830, 65620, 79546, 84320, 87244, 95728, 101711, 102640, 104992, 109055, 119660, 131240, 159092, 174488, 191456, 198865, 203422, 205280, 218110, 239320, 247619, 262480, 318184, 348976, 397730, 406844, 436220, 478640, 495238, 508555, 524960, 636368, 676141, 697952, 795460, 813688, 872440, 957280, 990476, 1017110, 1238095, 1272736, 1352282, 1590920, 1627376, 1744880, 1980952, 2034220, 2476190, 2704564, 3181840, 3254752, 3380705, 3489760, 3961904, 4068440, 4209523, 4952380, 5409128, 6363680, 6761410, 7676189, 7923808, 8136880, 8419046, 9904760, 10818256, 13522820, 15352378, 16273760, 16838092, 19809520, 21047615, 21636512, 27045640, 30704756, 33676184, 38380945, 39619040, 42095230, 54091280, 61409512, 67352368, 76761890, 84190460, 108182560, 122819024, 130495213, 134704736, 153523780, 168380920, 245638048, 260990426, 307047560, 336761840, 521980852, 614095120, 652476065, 673523680, 1043961704, 1228190240, 1304952130, 2087923408, 2609904260, 4175846816, 5219808520, 10439617040, 20879234080]

約数ペア:

[(1, 20879234080), (2, 10439617040), (4, 5219808520), (5, 4175846816), (8, 2609904260), (10, 2087923408), (16, 1304952130), (17, 1228190240), (20, 1043961704), (31, 673523680), (32, 652476065), (34, 614095120), (40, 521980852), (62, 336761840), (68, 307047560), (80, 260990426), (85, 245638048), (124, 168380920), (136, 153523780), (155, 134704736), (160, 130495213), (170, 122819024), (193, 108182560), (248, 84190460), (272, 76761890), (310, 67352368), (340, 61409512), (386, 54091280), (496, 42095230), (527, 39619040), (544, 38380945), (620, 33676184), (680, 30704756), (772, 27045640), (965, 21636512), (992, 21047615), (1054, 19809520), (1240, 16838092), (1283, 16273760), (1360, 15352378), (1544, 13522820), (1930, 10818256), (2108, 9904760), (2480, 8419046), (2566, 8136880), (2635, 7923808), (2720, 7676189), (3088, 6761410), (3281, 6363680), (3860, 5409128), (4216, 4952380), (4960, 4209523), (5132, 4068440), (5270, 3961904), (5983, 3489760), (6176, 3380705), (6415, 3254752), (6562, 3181840), (7720, 2704564), (8432, 2476190), (10264, 2034220), (10540, 1980952), (11966, 1744880), (12830, 1627376), (13124, 1590920), (15440, 1352282), (16405, 1272736), (16864, 1238095), (20528, 1017110), (21080, 990476), (21811, 957280), (23932, 872440), (25660, 813688), (26248, 795460), (29915, 697952), (30880, 676141), (32810, 636368), (39773, 524960), (41056, 508555), (42160, 495238), (43622, 478640), (47864, 436220), (51320, 406844), (52496, 397730), (59830, 348976), (65620, 318184), (79546, 262480), (84320, 247619), (87244, 239320), (95728, 218110), (101711, 205280), (102640, 203422), (104992, 198865), (109055, 191456), (119660, 174488), (131240, 159092)]