20789940480

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{2129}}^1\times {\mathrm{2543}}^1$

素因数の和:4696

約数の個数: 144

約数和(自身を含む): 66455182080

約数和(自身を除く): 45665241600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 2129, 2543, 3840, 4258, 5086, 6387, 7629, 8516, 10172, 10645, 12715, 12774, 15258, 17032, 20344, 21290, 25430, 25548, 30516, 31935, 34064, 38145, 40688, 42580, 50860, 51096, 61032, 63870, 68128, 76290, 81376, 85160, 101720, 102192, 122064, 127740, 136256, 152580, 162752, 170320, 203440, 204384, 244128, 255480, 272512, 305160, 325504, 340640, 406880, 408768, 488256, 510960, 545024, 610320, 651008, 681280, 813760, 817536, 976512, 1021920, 1220640, 1362560, 1627520, 1635072, 1953024, 2043840, 2441280, 2725120, 3255040, 4087680, 4882560, 5414047, 8175360, 9765120, 10828094, 16242141, 21656188, 27070235, 32484282, 43312376, 54140470, 64968564, 81210705, 86624752, 108280940, 129937128, 162421410, 173249504, 216561880, 259874256, 324842820, 346499008, 433123760, 519748512, 649685640, 692998016, 866247520, 1039497024, 1299371280, 1385996032, 1732495040, 2078994048, 2598742560, 3464990080, 4157988096, 5197485120, 6929980160, 10394970240, 20789940480]

約数ペア:

[(1, 20789940480), (2, 10394970240), (3, 6929980160), (4, 5197485120), (5, 4157988096), (6, 3464990080), (8, 2598742560), (10, 2078994048), (12, 1732495040), (15, 1385996032), (16, 1299371280), (20, 1039497024), (24, 866247520), (30, 692998016), (32, 649685640), (40, 519748512), (48, 433123760), (60, 346499008), (64, 324842820), (80, 259874256), (96, 216561880), (120, 173249504), (128, 162421410), (160, 129937128), (192, 108280940), (240, 86624752), (256, 81210705), (320, 64968564), (384, 54140470), (480, 43312376), (640, 32484282), (768, 27070235), (960, 21656188), (1280, 16242141), (1920, 10828094), (2129, 9765120), (2543, 8175360), (3840, 5414047), (4258, 4882560), (5086, 4087680), (6387, 3255040), (7629, 2725120), (8516, 2441280), (10172, 2043840), (10645, 1953024), (12715, 1635072), (12774, 1627520), (15258, 1362560), (17032, 1220640), (20344, 1021920), (21290, 976512), (25430, 817536), (25548, 813760), (30516, 681280), (31935, 651008), (34064, 610320), (38145, 545024), (40688, 510960), (42580, 488256), (50860, 408768), (51096, 406880), (61032, 340640), (63870, 325504), (68128, 305160), (76290, 272512), (81376, 255480), (85160, 244128), (101720, 204384), (102192, 203440), (122064, 170320), (127740, 162752), (136256, 152580)]