28674180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{661}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 87471384

約数和(自身を除く): 58797204

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 241, 482, 661, 723, 964, 1205, 1322, 1446, 1983, 2169, 2410, 2644, 2892, 3305, 3615, 3966, 4338, 4820, 5949, 6610, 7230, 7932, 8676, 9915, 10845, 11898, 13220, 14460, 19830, 21690, 23796, 29745, 39660, 43380, 59490, 118980, 159301, 318602, 477903, 637204, 796505, 955806, 1433709, 1593010, 1911612, 2389515, 2867418, 3186020, 4779030, 5734836, 7168545, 9558060, 14337090, 28674180]

約数ペア:

[(1, 28674180), (2, 14337090), (3, 9558060), (4, 7168545), (5, 5734836), (6, 4779030), (9, 3186020), (10, 2867418), (12, 2389515), (15, 1911612), (18, 1593010), (20, 1433709), (30, 955806), (36, 796505), (45, 637204), (60, 477903), (90, 318602), (180, 159301), (241, 118980), (482, 59490), (661, 43380), (723, 39660), (964, 29745), (1205, 23796), (1322, 21690), (1446, 19830), (1983, 14460), (2169, 13220), (2410, 11898), (2644, 10845), (2892, 9915), (3305, 8676), (3615, 7932), (3966, 7230), (4338, 6610), (4820, 5949)]