870380920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{4111}}^1$

素因数の和:4268

約数の個数: 64

約数和(自身を含む): 2013235200

約数和(自身を除く): 1142854280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 79, 134, 158, 268, 316, 335, 395, 536, 632, 670, 790, 1340, 1580, 2680, 3160, 4111, 5293, 8222, 10586, 16444, 20555, 21172, 26465, 32888, 41110, 42344, 52930, 82220, 105860, 164440, 211720, 275437, 324769, 550874, 649538, 1101748, 1299076, 1377185, 1623845, 2203496, 2598152, 2754370, 3247690, 5508740, 6495380, 11017480, 12990760, 21759523, 43519046, 87038092, 108797615, 174076184, 217595230, 435190460, 870380920]

約数ペア:

[(1, 870380920), (2, 435190460), (4, 217595230), (5, 174076184), (8, 108797615), (10, 87038092), (20, 43519046), (40, 21759523), (67, 12990760), (79, 11017480), (134, 6495380), (158, 5508740), (268, 3247690), (316, 2754370), (335, 2598152), (395, 2203496), (536, 1623845), (632, 1377185), (670, 1299076), (790, 1101748), (1340, 649538), (1580, 550874), (2680, 324769), (3160, 275437), (4111, 211720), (5293, 164440), (8222, 105860), (10586, 82220), (16444, 52930), (20555, 42344), (21172, 41110), (26465, 32888)]