398105648

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{314957}}^1$

素因数の和:315044

約数の個数: 20

約数和(自身を含む): 781095840

約数和(自身を除く): 382990192

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 314957, 629914, 1259828, 2519656, 5039312, 24881603, 49763206, 99526412, 199052824, 398105648]

約数ペア:

[(1, 398105648), (2, 199052824), (4, 99526412), (8, 49763206), (16, 24881603), (79, 5039312), (158, 2519656), (316, 1259828), (632, 629914), (1264, 314957)]