642645120

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25747}}^1$

素因数の和:25782

約数の個数: 128

約数和(自身を含む): 2206088640

約数和(自身を除く): 1563443520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 384, 390, 416, 480, 520, 624, 640, 780, 832, 960, 1040, 1248, 1560, 1664, 1920, 2080, 2496, 3120, 4160, 4992, 6240, 8320, 12480, 24960, 25747, 51494, 77241, 102988, 128735, 154482, 205976, 257470, 308964, 334711, 386205, 411952, 514940, 617928, 669422, 772410, 823904, 1004133, 1029880, 1235856, 1338844, 1544820, 1647808, 1673555, 2008266, 2059760, 2471712, 2677688, 3089640, 3295616, 3347110, 4016532, 4119520, 4943424, 5020665, 5355376, 6179280, 6694220, 8033064, 8239040, 9886848, 10041330, 10710752, 12358560, 13388440, 16066128, 16478080, 20082660, 21421504, 24717120, 26776880, 32132256, 40165320, 42843008, 49434240, 53553760, 64264512, 80330640, 107107520, 128529024, 160661280, 214215040, 321322560, 642645120]

約数ペア:

[(1, 642645120), (2, 321322560), (3, 214215040), (4, 160661280), (5, 128529024), (6, 107107520), (8, 80330640), (10, 64264512), (12, 53553760), (13, 49434240), (15, 42843008), (16, 40165320), (20, 32132256), (24, 26776880), (26, 24717120), (30, 21421504), (32, 20082660), (39, 16478080), (40, 16066128), (48, 13388440), (52, 12358560), (60, 10710752), (64, 10041330), (65, 9886848), (78, 8239040), (80, 8033064), (96, 6694220), (104, 6179280), (120, 5355376), (128, 5020665), (130, 4943424), (156, 4119520), (160, 4016532), (192, 3347110), (195, 3295616), (208, 3089640), (240, 2677688), (260, 2471712), (312, 2059760), (320, 2008266), (384, 1673555), (390, 1647808), (416, 1544820), (480, 1338844), (520, 1235856), (624, 1029880), (640, 1004133), (780, 823904), (832, 772410), (960, 669422), (1040, 617928), (1248, 514940), (1560, 411952), (1664, 386205), (1920, 334711), (2080, 308964), (2496, 257470), (3120, 205976), (4160, 154482), (4992, 128735), (6240, 102988), (8320, 77241), (12480, 51494), (24960, 25747)]