28681388

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 51097200

約数和(自身を除く): 22415812

約数列:

[1, 2, 4, 109, 157, 218, 314, 419, 436, 628, 838, 1676, 17113, 34226, 45671, 65783, 68452, 91342, 131566, 182684, 263132, 7170347, 14340694, 28681388]

約数ペア:

[(1, 28681388), (2, 14340694), (4, 7170347), (109, 263132), (157, 182684), (218, 131566), (314, 91342), (419, 68452), (436, 65783), (628, 45671), (838, 34226), (1676, 17113)]