20164222780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{493979}}^1$

素因数の和:494158

約数の個数: 48

約数和(自身を含む): 45892717920

約数和(自身を除く): 25728495140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 785, 1570, 2041, 3140, 4082, 8164, 10205, 20410, 40820, 493979, 987958, 1975916, 2469895, 4939790, 6421727, 9879580, 12843454, 25686908, 32108635, 64217270, 77554703, 128434540, 155109406, 310218812, 387773515, 775547030, 1008211139, 1551094060, 2016422278, 4032844556, 5041055695, 10082111390, 20164222780]

約数ペア:

[(1, 20164222780), (2, 10082111390), (4, 5041055695), (5, 4032844556), (10, 2016422278), (13, 1551094060), (20, 1008211139), (26, 775547030), (52, 387773515), (65, 310218812), (130, 155109406), (157, 128434540), (260, 77554703), (314, 64217270), (628, 32108635), (785, 25686908), (1570, 12843454), (2041, 9879580), (3140, 6421727), (4082, 4939790), (8164, 2469895), (10205, 1975916), (20410, 987958), (40820, 493979)]