16438890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:775

約数の個数: 64

約数和(自身を含む): 43247232

約数和(自身を除く): 26808342

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 61, 65, 78, 122, 130, 183, 195, 305, 366, 390, 610, 691, 793, 915, 1382, 1586, 1830, 2073, 2379, 3455, 3965, 4146, 4758, 6910, 7930, 8983, 10365, 11895, 17966, 20730, 23790, 26949, 42151, 44915, 53898, 84302, 89830, 126453, 134745, 210755, 252906, 269490, 421510, 547963, 632265, 1095926, 1264530, 1643889, 2739815, 3287778, 5479630, 8219445, 16438890]

約数ペア:

[(1, 16438890), (2, 8219445), (3, 5479630), (5, 3287778), (6, 2739815), (10, 1643889), (13, 1264530), (15, 1095926), (26, 632265), (30, 547963), (39, 421510), (61, 269490), (65, 252906), (78, 210755), (122, 134745), (130, 126453), (183, 89830), (195, 84302), (305, 53898), (366, 44915), (390, 42151), (610, 26949), (691, 23790), (793, 20730), (915, 17966), (1382, 11895), (1586, 10365), (1830, 8983), (2073, 7930), (2379, 6910), (3455, 4758), (3965, 4146)]