28397240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22901}}^1$

素因数の和:22943

約数の個数: 32

約数和(自身を含む): 65957760

約数和(自身を除く): 37560520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 22901, 45802, 91604, 114505, 183208, 229010, 458020, 709931, 916040, 1419862, 2839724, 3549655, 5679448, 7099310, 14198620, 28397240]

約数ペア:

[(1, 28397240), (2, 14198620), (4, 7099310), (5, 5679448), (8, 3549655), (10, 2839724), (20, 1419862), (31, 916040), (40, 709931), (62, 458020), (124, 229010), (155, 183208), (248, 114505), (310, 91604), (620, 45802), (1240, 22901)]