19964970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{13049}}^1$

素因数の和:13079

約数の個数: 48

約数和(自身を含む): 54966600

約数和(自身を除く): 35001630

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 306, 510, 765, 1530, 13049, 26098, 39147, 65245, 78294, 117441, 130490, 195735, 221833, 234882, 391470, 443666, 587205, 665499, 1109165, 1174410, 1330998, 1996497, 2218330, 3327495, 3992994, 6654990, 9982485, 19964970]

約数ペア:

[(1, 19964970), (2, 9982485), (3, 6654990), (5, 3992994), (6, 3327495), (9, 2218330), (10, 1996497), (15, 1330998), (17, 1174410), (18, 1109165), (30, 665499), (34, 587205), (45, 443666), (51, 391470), (85, 234882), (90, 221833), (102, 195735), (153, 130490), (170, 117441), (255, 78294), (306, 65245), (510, 39147), (765, 26098), (1530, 13049)]