388389640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{511039}}^1$

素因数の和:511069

約数の個数: 32

約数和(自身を含む): 919872000

約数和(自身を除く): 531482360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 511039, 1022078, 2044156, 2555195, 4088312, 5110390, 9709741, 10220780, 19419482, 20441560, 38838964, 48548705, 77677928, 97097410, 194194820, 388389640]

約数ペア:

[(1, 388389640), (2, 194194820), (4, 97097410), (5, 77677928), (8, 48548705), (10, 38838964), (19, 20441560), (20, 19419482), (38, 10220780), (40, 9709741), (76, 5110390), (95, 4088312), (152, 2555195), (190, 2044156), (380, 1022078), (760, 511039)]