219969970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1489}}^1$

素因数の和:1603

約数の個数: 64

約数和(自身を含む): 463449600

約数和(自身を除く): 243479630

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 79, 85, 110, 158, 170, 187, 374, 395, 790, 869, 935, 1343, 1489, 1738, 1870, 2686, 2978, 4345, 6715, 7445, 8690, 13430, 14773, 14890, 16379, 25313, 29546, 32758, 50626, 73865, 81895, 117631, 126565, 147730, 163790, 235262, 253130, 278443, 556886, 588155, 1176310, 1293941, 1392215, 1999727, 2587882, 2784430, 3999454, 6469705, 9998635, 12939410, 19997270, 21996997, 43993994, 109984985, 219969970]

約数ペア:

[(1, 219969970), (2, 109984985), (5, 43993994), (10, 21996997), (11, 19997270), (17, 12939410), (22, 9998635), (34, 6469705), (55, 3999454), (79, 2784430), (85, 2587882), (110, 1999727), (158, 1392215), (170, 1293941), (187, 1176310), (374, 588155), (395, 556886), (790, 278443), (869, 253130), (935, 235262), (1343, 163790), (1489, 147730), (1738, 126565), (1870, 117631), (2686, 81895), (2978, 73865), (4345, 50626), (6715, 32758), (7445, 29546), (8690, 25313), (13430, 16379), (14773, 14890)]