20123409616

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{15920419}}^1$

素因数の和:15920506

約数の個数: 20

約数和(自身を含む): 39482641600

約数和(自身を除く): 19359231984

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 15920419, 31840838, 63681676, 127363352, 254726704, 1257713101, 2515426202, 5030852404, 10061704808, 20123409616]

約数ペア:

[(1, 20123409616), (2, 10061704808), (4, 5030852404), (8, 2515426202), (16, 1257713101), (79, 254726704), (158, 127363352), (316, 63681676), (632, 31840838), (1264, 15920419)]