20938480

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{1153}}^1$

素因数の和:1393

約数の個数: 40

約数和(自身を含む): 48938832

約数和(自身を除く): 28000352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1153, 1816, 2270, 2306, 3632, 4540, 4612, 5765, 9080, 9224, 11530, 18160, 18448, 23060, 46120, 92240, 261731, 523462, 1046924, 1308655, 2093848, 2617310, 4187696, 5234620, 10469240, 20938480]

約数ペア:

[(1, 20938480), (2, 10469240), (4, 5234620), (5, 4187696), (8, 2617310), (10, 2093848), (16, 1308655), (20, 1046924), (40, 523462), (80, 261731), (227, 92240), (454, 46120), (908, 23060), (1135, 18448), (1153, 18160), (1816, 11530), (2270, 9224), (2306, 9080), (3632, 5765), (4540, 4612)]