31436240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 80619840

約数和(自身を除く): 49183600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 139, 176, 220, 257, 278, 440, 514, 556, 695, 880, 1028, 1112, 1285, 1390, 1529, 2056, 2224, 2570, 2780, 2827, 3058, 4112, 5140, 5560, 5654, 6116, 7645, 10280, 11120, 11308, 12232, 14135, 15290, 20560, 22616, 24464, 28270, 30580, 35723, 45232, 56540, 61160, 71446, 113080, 122320, 142892, 178615, 226160, 285784, 357230, 392953, 571568, 714460, 785906, 1428920, 1571812, 1964765, 2857840, 3143624, 3929530, 6287248, 7859060, 15718120, 31436240]

約数ペア:

[(1, 31436240), (2, 15718120), (4, 7859060), (5, 6287248), (8, 3929530), (10, 3143624), (11, 2857840), (16, 1964765), (20, 1571812), (22, 1428920), (40, 785906), (44, 714460), (55, 571568), (80, 392953), (88, 357230), (110, 285784), (139, 226160), (176, 178615), (220, 142892), (257, 122320), (278, 113080), (440, 71446), (514, 61160), (556, 56540), (695, 45232), (880, 35723), (1028, 30580), (1112, 28270), (1285, 24464), (1390, 22616), (1529, 20560), (2056, 15290), (2224, 14135), (2570, 12232), (2780, 11308), (2827, 11120), (3058, 10280), (4112, 7645), (5140, 6116), (5560, 5654)]