639240960

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2729}}^1$

素因数の和:2814

約数の個数: 144

約数和(自身を含む): 2075804640

約数和(自身を除く): 1436563680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 128, 160, 183, 192, 240, 244, 256, 305, 320, 366, 384, 480, 488, 610, 640, 732, 768, 915, 960, 976, 1220, 1280, 1464, 1830, 1920, 1952, 2440, 2729, 2928, 3660, 3840, 3904, 4880, 5458, 5856, 7320, 7808, 8187, 9760, 10916, 11712, 13645, 14640, 15616, 16374, 19520, 21832, 23424, 27290, 29280, 32748, 39040, 40935, 43664, 46848, 54580, 58560, 65496, 78080, 81870, 87328, 109160, 117120, 130992, 163740, 166469, 174656, 218320, 234240, 261984, 327480, 332938, 349312, 436640, 499407, 523968, 654960, 665876, 698624, 832345, 873280, 998814, 1047936, 1309920, 1331752, 1664690, 1746560, 1997628, 2095872, 2497035, 2619840, 2663504, 3329380, 3493120, 3995256, 4994070, 5239680, 5327008, 6658760, 7990512, 9988140, 10479360, 10654016, 13317520, 15981024, 19976280, 21308032, 26635040, 31962048, 39952560, 42616064, 53270080, 63924096, 79905120, 106540160, 127848192, 159810240, 213080320, 319620480, 639240960]

約数ペア:

[(1, 639240960), (2, 319620480), (3, 213080320), (4, 159810240), (5, 127848192), (6, 106540160), (8, 79905120), (10, 63924096), (12, 53270080), (15, 42616064), (16, 39952560), (20, 31962048), (24, 26635040), (30, 21308032), (32, 19976280), (40, 15981024), (48, 13317520), (60, 10654016), (61, 10479360), (64, 9988140), (80, 7990512), (96, 6658760), (120, 5327008), (122, 5239680), (128, 4994070), (160, 3995256), (183, 3493120), (192, 3329380), (240, 2663504), (244, 2619840), (256, 2497035), (305, 2095872), (320, 1997628), (366, 1746560), (384, 1664690), (480, 1331752), (488, 1309920), (610, 1047936), (640, 998814), (732, 873280), (768, 832345), (915, 698624), (960, 665876), (976, 654960), (1220, 523968), (1280, 499407), (1464, 436640), (1830, 349312), (1920, 332938), (1952, 327480), (2440, 261984), (2729, 234240), (2928, 218320), (3660, 174656), (3840, 166469), (3904, 163740), (4880, 130992), (5458, 117120), (5856, 109160), (7320, 87328), (7808, 81870), (8187, 78080), (9760, 65496), (10916, 58560), (11712, 54580), (13645, 46848), (14640, 43664), (15616, 40935), (16374, 39040), (19520, 32748), (21832, 29280), (23424, 27290)]