1644802560

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{71389}}^1$

素因数の和:71418

約数の個数: 120

約数和(自身を含む): 5696493660

約数和(自身を除く): 4051691100

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1536, 1920, 2304, 2560, 2880, 3840, 4608, 5760, 7680, 11520, 23040, 71389, 142778, 214167, 285556, 356945, 428334, 571112, 642501, 713890, 856668, 1070835, 1142224, 1285002, 1427780, 1713336, 2141670, 2284448, 2570004, 2855560, 3212505, 3426672, 4283340, 4568896, 5140008, 5711120, 6425010, 6853344, 8566680, 9137792, 10280016, 11422240, 12850020, 13706688, 17133360, 18275584, 20560032, 22844480, 25700040, 27413376, 34266720, 36551168, 41120064, 45688960, 51400080, 54826752, 68533440, 82240128, 91377920, 102800160, 109653504, 137066880, 164480256, 182755840, 205600320, 274133760, 328960512, 411200640, 548267520, 822401280, 1644802560]

約数ペア:

[(1, 1644802560), (2, 822401280), (3, 548267520), (4, 411200640), (5, 328960512), (6, 274133760), (8, 205600320), (9, 182755840), (10, 164480256), (12, 137066880), (15, 109653504), (16, 102800160), (18, 91377920), (20, 82240128), (24, 68533440), (30, 54826752), (32, 51400080), (36, 45688960), (40, 41120064), (45, 36551168), (48, 34266720), (60, 27413376), (64, 25700040), (72, 22844480), (80, 20560032), (90, 18275584), (96, 17133360), (120, 13706688), (128, 12850020), (144, 11422240), (160, 10280016), (180, 9137792), (192, 8566680), (240, 6853344), (256, 6425010), (288, 5711120), (320, 5140008), (360, 4568896), (384, 4283340), (480, 3426672), (512, 3212505), (576, 2855560), (640, 2570004), (720, 2284448), (768, 2141670), (960, 1713336), (1152, 1427780), (1280, 1285002), (1440, 1142224), (1536, 1070835), (1920, 856668), (2304, 713890), (2560, 642501), (2880, 571112), (3840, 428334), (4608, 356945), (5760, 285556), (7680, 214167), (11520, 142778), (23040, 71389)]