20877190

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{541}}^1$

素因数の和:792

約数の個数: 32

約数和(自身を含む): 40038624

約数和(自身を除く): 19161434

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 227, 454, 541, 1082, 1135, 2270, 2705, 3859, 5410, 7718, 9197, 18394, 19295, 38590, 45985, 91970, 122807, 245614, 614035, 1228070, 2087719, 4175438, 10438595, 20877190]

約数ペア:

[(1, 20877190), (2, 10438595), (5, 4175438), (10, 2087719), (17, 1228070), (34, 614035), (85, 245614), (170, 122807), (227, 91970), (454, 45985), (541, 38590), (1082, 19295), (1135, 18394), (2270, 9197), (2705, 7718), (3859, 5410)]