661796156

素因数分解:

$2^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{379}}^1$

素因数の和:607

約数の個数: 72

約数和(自身を含む): 1382774400

約数和(自身を除く): 720978244

約数列:

[1, 2, 4, 7, 14, 28, 49, 59, 98, 118, 151, 196, 236, 302, 379, 413, 604, 758, 826, 1057, 1516, 1652, 2114, 2653, 2891, 4228, 5306, 5782, 7399, 8909, 10612, 11564, 14798, 17818, 18571, 22361, 29596, 35636, 37142, 44722, 57229, 62363, 74284, 89444, 114458, 124726, 156527, 228916, 249452, 313054, 400603, 436541, 626108, 801206, 873082, 1095689, 1602412, 1746164, 2191378, 2804221, 3376511, 4382756, 5608442, 6753022, 11216884, 13506044, 23635577, 47271154, 94542308, 165449039, 330898078, 661796156]

約数ペア:

[(1, 661796156), (2, 330898078), (4, 165449039), (7, 94542308), (14, 47271154), (28, 23635577), (49, 13506044), (59, 11216884), (98, 6753022), (118, 5608442), (151, 4382756), (196, 3376511), (236, 2804221), (302, 2191378), (379, 1746164), (413, 1602412), (604, 1095689), (758, 873082), (826, 801206), (1057, 626108), (1516, 436541), (1652, 400603), (2114, 313054), (2653, 249452), (2891, 228916), (4228, 156527), (5306, 124726), (5782, 114458), (7399, 89444), (8909, 74284), (10612, 62363), (11564, 57229), (14798, 44722), (17818, 37142), (18571, 35636), (22361, 29596)]