215865320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{28859}}^1$

素因数の和:28898

約数の個数: 64

約数和(自身を含む): 561038400

約数和(自身を除く): 345173080

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 28859, 57718, 115436, 144295, 230872, 288590, 317449, 490603, 577180, 634898, 981206, 1154360, 1269796, 1587245, 1962412, 2453015, 2539592, 3174490, 3924824, 4906030, 5396633, 6348980, 9812060, 10793266, 12697960, 19624120, 21586532, 26983165, 43173064, 53966330, 107932660, 215865320]

約数ペア:

[(1, 215865320), (2, 107932660), (4, 53966330), (5, 43173064), (8, 26983165), (10, 21586532), (11, 19624120), (17, 12697960), (20, 10793266), (22, 9812060), (34, 6348980), (40, 5396633), (44, 4906030), (55, 3924824), (68, 3174490), (85, 2539592), (88, 2453015), (110, 1962412), (136, 1587245), (170, 1269796), (187, 1154360), (220, 981206), (340, 634898), (374, 577180), (440, 490603), (680, 317449), (748, 288590), (935, 230872), (1496, 144295), (1870, 115436), (3740, 57718), (7480, 28859)]