20879170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6983}}^1$

素因数の和:7026

約数の個数: 32

約数和(自身を含む): 42239232

約数和(自身を除く): 21360062

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 6983, 13966, 34915, 69830, 90779, 160609, 181558, 321218, 453895, 803045, 907790, 1606090, 2087917, 4175834, 10439585, 20879170]

約数ペア:

[(1, 20879170), (2, 10439585), (5, 4175834), (10, 2087917), (13, 1606090), (23, 907790), (26, 803045), (46, 453895), (65, 321218), (115, 181558), (130, 160609), (230, 90779), (299, 69830), (598, 34915), (1495, 13966), (2990, 6983)]