20421347520

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{3038891}}^1$

素因数の和:3038918

約数の個数: 112

約数和(自身を含む): 74100342528

約数和(自身を除く): 53678995008

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3360, 6720, 3038891, 6077782, 9116673, 12155564, 15194455, 18233346, 21272237, 24311128, 30388910, 36466692, 42544474, 45583365, 48622256, 60777820, 63816711, 72933384, 85088948, 91166730, 97244512, 106361185, 121555640, 127633422, 145866768, 170177896, 182333460, 194489024, 212722370, 243111280, 255266844, 291733536, 319083555, 340355792, 364666920, 425444740, 486222560, 510533688, 583467072, 638167110, 680711584, 729333840, 850889480, 972445120, 1021067376, 1276334220, 1361423168, 1458667680, 1701778960, 2042134752, 2552668440, 2917335360, 3403557920, 4084269504, 5105336880, 6807115840, 10210673760, 20421347520]

約数ペア:

[(1, 20421347520), (2, 10210673760), (3, 6807115840), (4, 5105336880), (5, 4084269504), (6, 3403557920), (7, 2917335360), (8, 2552668440), (10, 2042134752), (12, 1701778960), (14, 1458667680), (15, 1361423168), (16, 1276334220), (20, 1021067376), (21, 972445120), (24, 850889480), (28, 729333840), (30, 680711584), (32, 638167110), (35, 583467072), (40, 510533688), (42, 486222560), (48, 425444740), (56, 364666920), (60, 340355792), (64, 319083555), (70, 291733536), (80, 255266844), (84, 243111280), (96, 212722370), (105, 194489024), (112, 182333460), (120, 170177896), (140, 145866768), (160, 127633422), (168, 121555640), (192, 106361185), (210, 97244512), (224, 91166730), (240, 85088948), (280, 72933384), (320, 63816711), (336, 60777820), (420, 48622256), (448, 45583365), (480, 42544474), (560, 36466692), (672, 30388910), (840, 24311128), (960, 21272237), (1120, 18233346), (1344, 15194455), (1680, 12155564), (2240, 9116673), (3360, 6077782), (6720, 3038891)]