20684588800

素因数分解:

$2^8\times 5^2\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{761}}^1$

素因数の和:955

約数の個数: 216

約数和(自身を含む): 53304838272

約数和(自身を除く): 32620249472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 137, 155, 160, 200, 248, 256, 274, 310, 320, 400, 496, 548, 620, 640, 685, 761, 775, 800, 992, 1096, 1240, 1280, 1370, 1522, 1550, 1600, 1984, 2192, 2480, 2740, 3044, 3100, 3200, 3425, 3805, 3968, 4247, 4384, 4960, 5480, 6088, 6200, 6400, 6850, 7610, 7936, 8494, 8768, 9920, 10960, 12176, 12400, 13700, 15220, 16988, 17536, 19025, 19840, 21235, 21920, 23591, 24352, 24800, 27400, 30440, 33976, 35072, 38050, 39680, 42470, 43840, 47182, 48704, 49600, 54800, 60880, 67952, 76100, 84940, 87680, 94364, 97408, 99200, 104257, 106175, 109600, 117955, 121760, 135904, 152200, 169880, 175360, 188728, 194816, 198400, 208514, 212350, 219200, 235910, 243520, 271808, 304400, 339760, 377456, 417028, 424700, 438400, 471820, 487040, 521285, 543616, 589775, 608800, 679520, 754912, 834056, 849400, 876800, 943640, 974080, 1042570, 1087232, 1179550, 1217600, 1359040, 1509824, 1668112, 1698800, 1887280, 2085140, 2359100, 2435200, 2606425, 2718080, 3019648, 3231967, 3336224, 3397600, 3774560, 4170280, 4718200, 4870400, 5212850, 5436160, 6039296, 6463934, 6672448, 6795200, 7549120, 8340560, 9436400, 10425700, 12927868, 13344896, 13590400, 15098240, 16159835, 16681120, 18872800, 20851400, 25855736, 26689792, 27180800, 30196480, 32319670, 33362240, 37745600, 41702800, 51711472, 64639340, 66724480, 75491200, 80799175, 83405600, 103422944, 129278680, 133448960, 150982400, 161598350, 166811200, 206845888, 258557360, 323196700, 333622400, 413691776, 517114720, 646393400, 667244800, 827383552, 1034229440, 1292786800, 2068458880, 2585573600, 4136917760, 5171147200, 10342294400, 20684588800]

約数ペア:

[(1, 20684588800), (2, 10342294400), (4, 5171147200), (5, 4136917760), (8, 2585573600), (10, 2068458880), (16, 1292786800), (20, 1034229440), (25, 827383552), (31, 667244800), (32, 646393400), (40, 517114720), (50, 413691776), (62, 333622400), (64, 323196700), (80, 258557360), (100, 206845888), (124, 166811200), (128, 161598350), (137, 150982400), (155, 133448960), (160, 129278680), (200, 103422944), (248, 83405600), (256, 80799175), (274, 75491200), (310, 66724480), (320, 64639340), (400, 51711472), (496, 41702800), (548, 37745600), (620, 33362240), (640, 32319670), (685, 30196480), (761, 27180800), (775, 26689792), (800, 25855736), (992, 20851400), (1096, 18872800), (1240, 16681120), (1280, 16159835), (1370, 15098240), (1522, 13590400), (1550, 13344896), (1600, 12927868), (1984, 10425700), (2192, 9436400), (2480, 8340560), (2740, 7549120), (3044, 6795200), (3100, 6672448), (3200, 6463934), (3425, 6039296), (3805, 5436160), (3968, 5212850), (4247, 4870400), (4384, 4718200), (4960, 4170280), (5480, 3774560), (6088, 3397600), (6200, 3336224), (6400, 3231967), (6850, 3019648), (7610, 2718080), (7936, 2606425), (8494, 2435200), (8768, 2359100), (9920, 2085140), (10960, 1887280), (12176, 1698800), (12400, 1668112), (13700, 1509824), (15220, 1359040), (16988, 1217600), (17536, 1179550), (19025, 1087232), (19840, 1042570), (21235, 974080), (21920, 943640), (23591, 876800), (24352, 849400), (24800, 834056), (27400, 754912), (30440, 679520), (33976, 608800), (35072, 589775), (38050, 543616), (39680, 521285), (42470, 487040), (43840, 471820), (47182, 438400), (48704, 424700), (49600, 417028), (54800, 377456), (60880, 339760), (67952, 304400), (76100, 271808), (84940, 243520), (87680, 235910), (94364, 219200), (97408, 212350), (99200, 208514), (104257, 198400), (106175, 194816), (109600, 188728), (117955, 175360), (121760, 169880), (135904, 152200)]