644382568

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{103399}}^1$

素因数の和:103465

約数の個数: 32

約数和(自身を含む): 1302840000

約数和(自身を除く): 658457432

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 152, 164, 328, 779, 1558, 3116, 6232, 103399, 206798, 413596, 827192, 1964581, 3929162, 4239359, 7858324, 8478718, 15716648, 16957436, 33914872, 80547821, 161095642, 322191284, 644382568]

約数ペア:

[(1, 644382568), (2, 322191284), (4, 161095642), (8, 80547821), (19, 33914872), (38, 16957436), (41, 15716648), (76, 8478718), (82, 7858324), (152, 4239359), (164, 3929162), (328, 1964581), (779, 827192), (1558, 413596), (3116, 206798), (6232, 103399)]