40885940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 89586000

約数和(自身を除く): 48700060

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 157, 290, 314, 449, 580, 628, 785, 898, 1570, 1796, 2245, 3140, 4490, 4553, 8980, 9106, 13021, 18212, 22765, 26042, 45530, 52084, 65105, 70493, 91060, 130210, 140986, 260420, 281972, 352465, 704930, 1409860, 2044297, 4088594, 8177188, 10221485, 20442970, 40885940]

約数ペア:

[(1, 40885940), (2, 20442970), (4, 10221485), (5, 8177188), (10, 4088594), (20, 2044297), (29, 1409860), (58, 704930), (116, 352465), (145, 281972), (157, 260420), (290, 140986), (314, 130210), (449, 91060), (580, 70493), (628, 65105), (785, 52084), (898, 45530), (1570, 26042), (1796, 22765), (2245, 18212), (3140, 13021), (4490, 9106), (4553, 8980)]