319779440

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{17609}}^1$

素因数の和:17849

約数の個数: 40

約数和(自身を含む): 746804880

約数和(自身を除く): 427025440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1816, 2270, 3632, 4540, 9080, 17609, 18160, 35218, 70436, 88045, 140872, 176090, 281744, 352180, 704360, 1408720, 3997243, 7994486, 15988972, 19986215, 31977944, 39972430, 63955888, 79944860, 159889720, 319779440]

約数ペア:

[(1, 319779440), (2, 159889720), (4, 79944860), (5, 63955888), (8, 39972430), (10, 31977944), (16, 19986215), (20, 15988972), (40, 7994486), (80, 3997243), (227, 1408720), (454, 704360), (908, 352180), (1135, 281744), (1816, 176090), (2270, 140872), (3632, 88045), (4540, 70436), (9080, 35218), (17609, 18160)]