1643409820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{203897}}^1$

素因数の和:203950

約数の個数: 48

約数和(自身を含む): 3836544768

約数和(自身を除く): 2193134948

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 203897, 407794, 815588, 1019485, 2038970, 2650661, 4077940, 5301322, 6320807, 10602644, 12641614, 13253305, 25283228, 26506610, 31604035, 53013220, 63208070, 82170491, 126416140, 164340982, 328681964, 410852455, 821704910, 1643409820]

約数ペア:

[(1, 1643409820), (2, 821704910), (4, 410852455), (5, 328681964), (10, 164340982), (13, 126416140), (20, 82170491), (26, 63208070), (31, 53013220), (52, 31604035), (62, 26506610), (65, 25283228), (124, 13253305), (130, 12641614), (155, 10602644), (260, 6320807), (310, 5301322), (403, 4077940), (620, 2650661), (806, 2038970), (1612, 1019485), (2015, 815588), (4030, 407794), (8060, 203897)]