81696930

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{563}}^1\times {\mathrm{691}}^1$

素因数の和:1271

約数の個数: 64

約数和(自身を含む): 224805888

約数和(自身を除く): 143108958

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 563, 691, 1126, 1382, 1689, 2073, 2815, 3378, 3455, 3941, 4146, 4837, 5630, 6910, 7882, 8445, 9674, 10365, 11823, 14511, 16890, 19705, 20730, 23646, 24185, 29022, 39410, 48370, 59115, 72555, 118230, 145110, 389033, 778066, 1167099, 1945165, 2334198, 2723231, 3890330, 5446462, 5835495, 8169693, 11670990, 13616155, 16339386, 27232310, 40848465, 81696930]

約数ペア:

[(1, 81696930), (2, 40848465), (3, 27232310), (5, 16339386), (6, 13616155), (7, 11670990), (10, 8169693), (14, 5835495), (15, 5446462), (21, 3890330), (30, 2723231), (35, 2334198), (42, 1945165), (70, 1167099), (105, 778066), (210, 389033), (563, 145110), (691, 118230), (1126, 72555), (1382, 59115), (1689, 48370), (2073, 39410), (2815, 29022), (3378, 24185), (3455, 23646), (3941, 20730), (4146, 19705), (4837, 16890), (5630, 14511), (6910, 11823), (7882, 10365), (8445, 9674)]