216647560

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{55837}}^1$

素因数の和:55945

約数の個数: 32

約数和(自身を含む): 492491160

約数和(自身を除く): 275843600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 55837, 111674, 223348, 279185, 446696, 558370, 1116740, 2233480, 5416189, 10832378, 21664756, 27080945, 43329512, 54161890, 108323780, 216647560]

約数ペア:

[(1, 216647560), (2, 108323780), (4, 54161890), (5, 43329512), (8, 27080945), (10, 21664756), (20, 10832378), (40, 5416189), (97, 2233480), (194, 1116740), (388, 558370), (485, 446696), (776, 279185), (970, 223348), (1940, 111674), (3880, 55837)]