387954640

素因数分解:

$2^4\times 5^1\times {\mathrm{1777}}^1\times {\mathrm{2729}}^1$

素因数の和:4519

約数の個数: 40

約数和(自身を含む): 902832840

約数和(自身を除く): 514878200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1777, 2729, 3554, 5458, 7108, 8885, 10916, 13645, 14216, 17770, 21832, 27290, 28432, 35540, 43664, 54580, 71080, 109160, 142160, 218320, 4849433, 9698866, 19397732, 24247165, 38795464, 48494330, 77590928, 96988660, 193977320, 387954640]

約数ペア:

[(1, 387954640), (2, 193977320), (4, 96988660), (5, 77590928), (8, 48494330), (10, 38795464), (16, 24247165), (20, 19397732), (40, 9698866), (80, 4849433), (1777, 218320), (2729, 142160), (3554, 109160), (5458, 71080), (7108, 54580), (8885, 43664), (10916, 35540), (13645, 28432), (14216, 27290), (17770, 21832)]