25221640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{11897}}^1$

素因数の和:11961

約数の個数: 32

約数和(自身を含む): 57824280

約数和(自身を除く): 32602640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 11897, 23794, 47588, 59485, 95176, 118970, 237940, 475880, 630541, 1261082, 2522164, 3152705, 5044328, 6305410, 12610820, 25221640]

約数ペア:

[(1, 25221640), (2, 12610820), (4, 6305410), (5, 5044328), (8, 3152705), (10, 2522164), (20, 1261082), (40, 630541), (53, 475880), (106, 237940), (212, 118970), (265, 95176), (424, 59485), (530, 47588), (1060, 23794), (2120, 11897)]