18551120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:388

約数の個数: 80

約数和(自身を含む): 49842048

約数和(自身を除く): 31290928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 211, 280, 314, 422, 560, 628, 785, 844, 1055, 1099, 1256, 1477, 1570, 1688, 2110, 2198, 2512, 2954, 3140, 3376, 4220, 4396, 5495, 5908, 6280, 7385, 8440, 8792, 10990, 11816, 12560, 14770, 16880, 17584, 21980, 23632, 29540, 33127, 43960, 59080, 66254, 87920, 118160, 132508, 165635, 231889, 265016, 331270, 463778, 530032, 662540, 927556, 1159445, 1325080, 1855112, 2318890, 2650160, 3710224, 4637780, 9275560, 18551120]

約数ペア:

[(1, 18551120), (2, 9275560), (4, 4637780), (5, 3710224), (7, 2650160), (8, 2318890), (10, 1855112), (14, 1325080), (16, 1159445), (20, 927556), (28, 662540), (35, 530032), (40, 463778), (56, 331270), (70, 265016), (80, 231889), (112, 165635), (140, 132508), (157, 118160), (211, 87920), (280, 66254), (314, 59080), (422, 43960), (560, 33127), (628, 29540), (785, 23632), (844, 21980), (1055, 17584), (1099, 16880), (1256, 14770), (1477, 12560), (1570, 11816), (1688, 10990), (2110, 8792), (2198, 8440), (2512, 7385), (2954, 6280), (3140, 5908), (3376, 5495), (4220, 4396)]