16804555480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{61001}}^1$

素因数の和:61180

約数の個数: 64

約数和(自身を含む): 38738710080

約数和(自身を除く): 21934154600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 97, 142, 194, 284, 355, 388, 485, 568, 710, 776, 970, 1420, 1940, 2840, 3880, 6887, 13774, 27548, 34435, 55096, 61001, 68870, 122002, 137740, 244004, 275480, 305005, 488008, 610010, 1220020, 2440040, 4331071, 5917097, 8662142, 11834194, 17324284, 21655355, 23668388, 29585485, 34648568, 43310710, 47336776, 59170970, 86621420, 118341940, 173242840, 236683880, 420113887, 840227774, 1680455548, 2100569435, 3360911096, 4201138870, 8402277740, 16804555480]

約数ペア:

[(1, 16804555480), (2, 8402277740), (4, 4201138870), (5, 3360911096), (8, 2100569435), (10, 1680455548), (20, 840227774), (40, 420113887), (71, 236683880), (97, 173242840), (142, 118341940), (194, 86621420), (284, 59170970), (355, 47336776), (388, 43310710), (485, 34648568), (568, 29585485), (710, 23668388), (776, 21655355), (970, 17324284), (1420, 11834194), (1940, 8662142), (2840, 5917097), (3880, 4331071), (6887, 2440040), (13774, 1220020), (27548, 610010), (34435, 488008), (55096, 305005), (61001, 275480), (68870, 244004), (122002, 137740)]