420645120

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{15649}}^1$

素因数の和:15680

約数の個数: 144

約数和(自身を含む): 1535452800

約数和(自身を除く): 1114807680

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, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 13440, 15649, 26880, 31298, 46947, 62596, 78245, 93894, 109543, 125192, 156490, 187788, 219086, 234735, 250384, 312980, 328629, 375576, 438172, 469470, 500768, 547715, 625960, 657258, 751152, 876344, 938940, 1001536, 1095430, 1251920, 1314516, 1502304, 1643145, 1752688, 1877880, 2003072, 2190860, 2503840, 2629032, 3004608, 3286290, 3505376, 3755760, 4006144, 4381720, 5007680, 5258064, 6009216, 6572580, 7010752, 7511520, 8763440, 10015360, 10516128, 12018432, 13145160, 14021504, 15023040, 17526880, 20030720, 21032256, 26290320, 28043008, 30046080, 35053760, 42064512, 52580640, 60092160, 70107520, 84129024, 105161280, 140215040, 210322560, 420645120]

約数ペア:

[(1, 420645120), (2, 210322560), (3, 140215040), (4, 105161280), (5, 84129024), (6, 70107520), (7, 60092160), (8, 52580640), (10, 42064512), (12, 35053760), (14, 30046080), (15, 28043008), (16, 26290320), (20, 21032256), (21, 20030720), (24, 17526880), (28, 15023040), (30, 14021504), (32, 13145160), (35, 12018432), (40, 10516128), (42, 10015360), (48, 8763440), (56, 7511520), (60, 7010752), (64, 6572580), (70, 6009216), (80, 5258064), (84, 5007680), (96, 4381720), (105, 4006144), (112, 3755760), (120, 3505376), (128, 3286290), (140, 3004608), (160, 2629032), (168, 2503840), (192, 2190860), (210, 2003072), (224, 1877880), (240, 1752688), (256, 1643145), (280, 1502304), (320, 1314516), (336, 1251920), (384, 1095430), (420, 1001536), (448, 938940), (480, 876344), (560, 751152), (640, 657258), (672, 625960), (768, 547715), (840, 500768), (896, 469470), (960, 438172), (1120, 375576), (1280, 328629), (1344, 312980), (1680, 250384), (1792, 234735), (1920, 219086), (2240, 187788), (2688, 156490), (3360, 125192), (3840, 109543), (4480, 93894), (5376, 78245), (6720, 62596), (8960, 46947), (13440, 31298), (15649, 26880)]