19886260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2543}}^1$

素因数の和:2592

約数の個数: 48

約数和(自身を含む): 46158336

約数和(自身を除く): 26272076

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2543, 3910, 5086, 7820, 10172, 12715, 25430, 43231, 50860, 58489, 86462, 116978, 172924, 216155, 233956, 292445, 432310, 584890, 864620, 994313, 1169780, 1988626, 3977252, 4971565, 9943130, 19886260]

約数ペア:

[(1, 19886260), (2, 9943130), (4, 4971565), (5, 3977252), (10, 1988626), (17, 1169780), (20, 994313), (23, 864620), (34, 584890), (46, 432310), (68, 292445), (85, 233956), (92, 216155), (115, 172924), (170, 116978), (230, 86462), (340, 58489), (391, 50860), (460, 43231), (782, 25430), (1564, 12715), (1955, 10172), (2543, 7820), (3910, 5086)]