40782760

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2621}}^1$

素因数の和:3021

約数の個数: 32

約数和(自身を含む): 92032200

約数和(自身を除く): 51249440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 2621, 3112, 3890, 5242, 7780, 10484, 13105, 15560, 20968, 26210, 52420, 104840, 1019569, 2039138, 4078276, 5097845, 8156552, 10195690, 20391380, 40782760]

約数ペア:

[(1, 40782760), (2, 20391380), (4, 10195690), (5, 8156552), (8, 5097845), (10, 4078276), (20, 2039138), (40, 1019569), (389, 104840), (778, 52420), (1556, 26210), (1945, 20968), (2621, 15560), (3112, 13105), (3890, 10484), (5242, 7780)]