640954078

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{541}}^1$

素因数の和:868

約数の個数: 32

約数和(自身を含む): 1009628928

約数和(自身を除く): 368674850

約数列:

[1, 2, 31, 62, 97, 194, 197, 394, 541, 1082, 3007, 6014, 6107, 12214, 16771, 19109, 33542, 38218, 52477, 104954, 106577, 213154, 592379, 1184758, 1626787, 3253574, 3303887, 6607774, 10337969, 20675938, 320477039, 640954078]

約数ペア:

[(1, 640954078), (2, 320477039), (31, 20675938), (62, 10337969), (97, 6607774), (194, 3303887), (197, 3253574), (394, 1626787), (541, 1184758), (1082, 592379), (3007, 213154), (6014, 106577), (6107, 104954), (12214, 52477), (16771, 38218), (19109, 33542)]