20155304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4507}}^1$

素因数の和:4569

約数の個数: 32

約数和(自身を含む): 41653920

約数和(自身を除く): 21498616

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4507, 9014, 18028, 36056, 58591, 117182, 193801, 234364, 387602, 468728, 775204, 1550408, 2519413, 5038826, 10077652, 20155304]

約数ペア:

[(1, 20155304), (2, 10077652), (4, 5038826), (8, 2519413), (13, 1550408), (26, 775204), (43, 468728), (52, 387602), (86, 234364), (104, 193801), (172, 117182), (344, 58591), (559, 36056), (1118, 18028), (2236, 9014), (4472, 4507)]