209916128

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3469}}^1$

素因数の和:3571

約数の個数: 48

約数和(自身を含む): 433722240

約数和(自身を除く): 223806112

約数列:

[1, 2, 4, 8, 16, 31, 32, 61, 62, 122, 124, 244, 248, 488, 496, 976, 992, 1891, 1952, 3469, 3782, 6938, 7564, 13876, 15128, 27752, 30256, 55504, 60512, 107539, 111008, 211609, 215078, 423218, 430156, 846436, 860312, 1692872, 1720624, 3385744, 3441248, 6559879, 6771488, 13119758, 26239516, 52479032, 104958064, 209916128]

約数ペア:

[(1, 209916128), (2, 104958064), (4, 52479032), (8, 26239516), (16, 13119758), (31, 6771488), (32, 6559879), (61, 3441248), (62, 3385744), (122, 1720624), (124, 1692872), (244, 860312), (248, 846436), (488, 430156), (496, 423218), (976, 215078), (992, 211609), (1891, 111008), (1952, 107539), (3469, 60512), (3782, 55504), (6938, 30256), (7564, 27752), (13876, 15128)]