1271296

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:222

約数の個数: 40

約数和(自身を含む): 2749824

約数和(自身を除く): 1478528

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 191, 208, 256, 382, 416, 512, 764, 832, 1528, 1664, 2483, 3056, 3328, 4966, 6112, 6656, 9932, 12224, 19864, 24448, 39728, 48896, 79456, 97792, 158912, 317824, 635648, 1271296]

約数ペア:

[(1, 1271296), (2, 635648), (4, 317824), (8, 158912), (13, 97792), (16, 79456), (26, 48896), (32, 39728), (52, 24448), (64, 19864), (104, 12224), (128, 9932), (191, 6656), (208, 6112), (256, 4966), (382, 3328), (416, 3056), (512, 2483), (764, 1664), (832, 1528)]