19998030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1091}}^1$

素因数の和:1161

約数の個数: 64

約数和(自身を含む): 52835328

約数和(自身を除く): 32837298

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 47, 65, 78, 94, 130, 141, 195, 235, 282, 390, 470, 611, 705, 1091, 1222, 1410, 1833, 2182, 3055, 3273, 3666, 5455, 6110, 6546, 9165, 10910, 14183, 16365, 18330, 28366, 32730, 42549, 51277, 70915, 85098, 102554, 141830, 153831, 212745, 256385, 307662, 425490, 512770, 666601, 769155, 1333202, 1538310, 1999803, 3333005, 3999606, 6666010, 9999015, 19998030]

約数ペア:

[(1, 19998030), (2, 9999015), (3, 6666010), (5, 3999606), (6, 3333005), (10, 1999803), (13, 1538310), (15, 1333202), (26, 769155), (30, 666601), (39, 512770), (47, 425490), (65, 307662), (78, 256385), (94, 212745), (130, 153831), (141, 141830), (195, 102554), (235, 85098), (282, 70915), (390, 51277), (470, 42549), (611, 32730), (705, 28366), (1091, 18330), (1222, 16365), (1410, 14183), (1833, 10910), (2182, 9165), (3055, 6546), (3273, 6110), (3666, 5455)]