647296

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:416

約数の個数: 32

約数和(自身を含む): 1392300

約数和(自身を除く): 745004

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 389, 416, 778, 832, 1556, 1664, 3112, 5057, 6224, 10114, 12448, 20228, 24896, 40456, 49792, 80912, 161824, 323648, 647296]

約数ペア:

[(1, 647296), (2, 323648), (4, 161824), (8, 80912), (13, 49792), (16, 40456), (26, 24896), (32, 20228), (52, 12448), (64, 10114), (104, 6224), (128, 5057), (208, 3112), (389, 1664), (416, 1556), (778, 832)]