21580740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1061}}^1$

素因数の和:1189

約数の個数: 72

約数和(自身を含む): 66103128

約数和(自身を除く): 44522388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 113, 180, 226, 339, 452, 565, 678, 1017, 1061, 1130, 1356, 1695, 2034, 2122, 2260, 3183, 3390, 4068, 4244, 5085, 5305, 6366, 6780, 9549, 10170, 10610, 12732, 15915, 19098, 20340, 21220, 31830, 38196, 47745, 63660, 95490, 119893, 190980, 239786, 359679, 479572, 599465, 719358, 1079037, 1198930, 1438716, 1798395, 2158074, 2397860, 3596790, 4316148, 5395185, 7193580, 10790370, 21580740]

約数ペア:

[(1, 21580740), (2, 10790370), (3, 7193580), (4, 5395185), (5, 4316148), (6, 3596790), (9, 2397860), (10, 2158074), (12, 1798395), (15, 1438716), (18, 1198930), (20, 1079037), (30, 719358), (36, 599465), (45, 479572), (60, 359679), (90, 239786), (113, 190980), (180, 119893), (226, 95490), (339, 63660), (452, 47745), (565, 38196), (678, 31830), (1017, 21220), (1061, 20340), (1130, 19098), (1356, 15915), (1695, 12732), (2034, 10610), (2122, 10170), (2260, 9549), (3183, 6780), (3390, 6366), (4068, 5305), (4244, 5085)]