31310080

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:483

約数の個数: 72

約数和(自身を含む): 76416984

約数和(自身を除く): 45106904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 401, 488, 610, 640, 802, 976, 1220, 1280, 1604, 1952, 2005, 2440, 3208, 3904, 4010, 4880, 6416, 7808, 8020, 9760, 12832, 15616, 16040, 19520, 24461, 25664, 32080, 39040, 48922, 51328, 64160, 78080, 97844, 102656, 122305, 128320, 195688, 244610, 256640, 391376, 489220, 513280, 782752, 978440, 1565504, 1956880, 3131008, 3913760, 6262016, 7827520, 15655040, 31310080]

約数ペア:

[(1, 31310080), (2, 15655040), (4, 7827520), (5, 6262016), (8, 3913760), (10, 3131008), (16, 1956880), (20, 1565504), (32, 978440), (40, 782752), (61, 513280), (64, 489220), (80, 391376), (122, 256640), (128, 244610), (160, 195688), (244, 128320), (256, 122305), (305, 102656), (320, 97844), (401, 78080), (488, 64160), (610, 51328), (640, 48922), (802, 39040), (976, 32080), (1220, 25664), (1280, 24461), (1604, 19520), (1952, 16040), (2005, 15616), (2440, 12832), (3208, 9760), (3904, 8020), (4010, 7808), (4880, 6416)]