1282780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2069}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 2782080

約数和(自身を除く): 1499300

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2069, 4138, 8276, 10345, 20690, 41380, 64139, 128278, 256556, 320695, 641390, 1282780]

約数ペア:

[(1, 1282780), (2, 641390), (4, 320695), (5, 256556), (10, 128278), (20, 64139), (31, 41380), (62, 20690), (124, 10345), (155, 8276), (310, 4138), (620, 2069)]