31447920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{18719}}^1$

素因数の和:18742

約数の個数: 80

約数和(自身を含む): 111421440

約数和(自身を除く): 79973520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 18719, 37438, 56157, 74876, 93595, 112314, 131033, 149752, 187190, 224628, 262066, 280785, 299504, 374380, 393099, 449256, 524132, 561570, 655165, 748760, 786198, 898512, 1048264, 1123140, 1310330, 1497520, 1572396, 1965495, 2096528, 2246280, 2620660, 3144792, 3930990, 4492560, 5241320, 6289584, 7861980, 10482640, 15723960, 31447920]

約数ペア:

[(1, 31447920), (2, 15723960), (3, 10482640), (4, 7861980), (5, 6289584), (6, 5241320), (7, 4492560), (8, 3930990), (10, 3144792), (12, 2620660), (14, 2246280), (15, 2096528), (16, 1965495), (20, 1572396), (21, 1497520), (24, 1310330), (28, 1123140), (30, 1048264), (35, 898512), (40, 786198), (42, 748760), (48, 655165), (56, 561570), (60, 524132), (70, 449256), (80, 393099), (84, 374380), (105, 299504), (112, 280785), (120, 262066), (140, 224628), (168, 187190), (210, 149752), (240, 131033), (280, 112314), (336, 93595), (420, 74876), (560, 56157), (840, 37438), (1680, 18719)]