20277628

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{37}}^2$

素因数の和:131

約数の個数: 54

約数和(自身を含む): 43571976

約数和(自身を除く): 23294348

約数列:

[1, 2, 4, 7, 14, 23, 28, 37, 46, 74, 92, 148, 161, 259, 322, 518, 529, 644, 851, 1036, 1058, 1369, 1702, 2116, 2738, 3404, 3703, 5476, 5957, 7406, 9583, 11914, 14812, 19166, 19573, 23828, 31487, 38332, 39146, 62974, 78292, 125948, 137011, 220409, 274022, 440818, 548044, 724201, 881636, 1448402, 2896804, 5069407, 10138814, 20277628]

約数ペア:

[(1, 20277628), (2, 10138814), (4, 5069407), (7, 2896804), (14, 1448402), (23, 881636), (28, 724201), (37, 548044), (46, 440818), (74, 274022), (92, 220409), (148, 137011), (161, 125948), (259, 78292), (322, 62974), (518, 39146), (529, 38332), (644, 31487), (851, 23828), (1036, 19573), (1058, 19166), (1369, 14812), (1702, 11914), (2116, 9583), (2738, 7406), (3404, 5957), (3703, 5476)]