20315854

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:732

約数の個数: 32

約数和(自身を含む): 34945344

約数和(自身を除く): 14629490

約数列:

[1, 2, 13, 23, 26, 46, 53, 106, 299, 598, 641, 689, 1219, 1282, 1378, 2438, 8333, 14743, 15847, 16666, 29486, 31694, 33973, 67946, 191659, 383318, 441649, 781379, 883298, 1562758, 10157927, 20315854]

約数ペア:

[(1, 20315854), (2, 10157927), (13, 1562758), (23, 883298), (26, 781379), (46, 441649), (53, 383318), (106, 191659), (299, 67946), (598, 33973), (641, 31694), (689, 29486), (1219, 16666), (1282, 15847), (1378, 14743), (2438, 8333)]