20156616

素因数分解:

$2^3\times 3^2\times {\mathrm{71}}^1\times {\mathrm{3943}}^1$

素因数の和:4026

約数の個数: 48

約数和(自身を含む): 55373760

約数和(自身を除く): 35217144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 71, 72, 142, 213, 284, 426, 568, 639, 852, 1278, 1704, 2556, 3943, 5112, 7886, 11829, 15772, 23658, 31544, 35487, 47316, 70974, 94632, 141948, 279953, 283896, 559906, 839859, 1119812, 1679718, 2239624, 2519577, 3359436, 5039154, 6718872, 10078308, 20156616]

約数ペア:

[(1, 20156616), (2, 10078308), (3, 6718872), (4, 5039154), (6, 3359436), (8, 2519577), (9, 2239624), (12, 1679718), (18, 1119812), (24, 839859), (36, 559906), (71, 283896), (72, 279953), (142, 141948), (213, 94632), (284, 70974), (426, 47316), (568, 35487), (639, 31544), (852, 23658), (1278, 15772), (1704, 11829), (2556, 7886), (3943, 5112)]