20121136

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 47568384

約数和(自身を除く): 27447248

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 73, 92, 107, 112, 146, 161, 184, 214, 292, 322, 368, 428, 511, 584, 644, 749, 856, 1022, 1168, 1288, 1498, 1679, 1712, 2044, 2461, 2576, 2996, 3358, 4088, 4922, 5992, 6716, 7811, 8176, 9844, 11753, 11984, 13432, 15622, 17227, 19688, 23506, 26864, 31244, 34454, 39376, 47012, 54677, 62488, 68908, 94024, 109354, 124976, 137816, 179653, 188048, 218708, 275632, 359306, 437416, 718612, 874832, 1257571, 1437224, 2515142, 2874448, 5030284, 10060568, 20121136]

約数ペア:

[(1, 20121136), (2, 10060568), (4, 5030284), (7, 2874448), (8, 2515142), (14, 1437224), (16, 1257571), (23, 874832), (28, 718612), (46, 437416), (56, 359306), (73, 275632), (92, 218708), (107, 188048), (112, 179653), (146, 137816), (161, 124976), (184, 109354), (214, 94024), (292, 68908), (322, 62488), (368, 54677), (428, 47012), (511, 39376), (584, 34454), (644, 31244), (749, 26864), (856, 23506), (1022, 19688), (1168, 17227), (1288, 15622), (1498, 13432), (1679, 11984), (1712, 11753), (2044, 9844), (2461, 8176), (2576, 7811), (2996, 6716), (3358, 5992), (4088, 4922)]