19993710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1409}}^1$

素因数の和:1473

約数の個数: 64

約数和(自身を含む): 53602560

約数和(自身を除く): 33608850

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 43, 55, 66, 86, 110, 129, 165, 215, 258, 330, 430, 473, 645, 946, 1290, 1409, 1419, 2365, 2818, 2838, 4227, 4730, 7045, 7095, 8454, 14090, 14190, 15499, 21135, 30998, 42270, 46497, 60587, 77495, 92994, 121174, 154990, 181761, 232485, 302935, 363522, 464970, 605870, 666457, 908805, 1332914, 1817610, 1999371, 3332285, 3998742, 6664570, 9996855, 19993710]

約数ペア:

[(1, 19993710), (2, 9996855), (3, 6664570), (5, 3998742), (6, 3332285), (10, 1999371), (11, 1817610), (15, 1332914), (22, 908805), (30, 666457), (33, 605870), (43, 464970), (55, 363522), (66, 302935), (86, 232485), (110, 181761), (129, 154990), (165, 121174), (215, 92994), (258, 77495), (330, 60587), (430, 46497), (473, 42270), (645, 30998), (946, 21135), (1290, 15499), (1409, 14190), (1419, 14090), (2365, 8454), (2818, 7095), (2838, 7045), (4227, 4730)]