661104016

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:444

約数の個数: 80

約数和(自身を含む): 1368801280

約数和(自身を除く): 707697264

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 124, 139, 172, 223, 248, 278, 344, 446, 496, 556, 688, 892, 1112, 1333, 1784, 2224, 2666, 3568, 4309, 5332, 5977, 6913, 8618, 9589, 10664, 11954, 13826, 17236, 19178, 21328, 23908, 27652, 30997, 34472, 38356, 47816, 55304, 61994, 68944, 76712, 95632, 110608, 123988, 153424, 185287, 247976, 297259, 370574, 495952, 594518, 741148, 960907, 1189036, 1332871, 1482296, 1921814, 2378072, 2665742, 2964592, 3843628, 4756144, 5331484, 7687256, 10662968, 15374512, 21325936, 41319001, 82638002, 165276004, 330552008, 661104016]

約数ペア:

[(1, 661104016), (2, 330552008), (4, 165276004), (8, 82638002), (16, 41319001), (31, 21325936), (43, 15374512), (62, 10662968), (86, 7687256), (124, 5331484), (139, 4756144), (172, 3843628), (223, 2964592), (248, 2665742), (278, 2378072), (344, 1921814), (446, 1482296), (496, 1332871), (556, 1189036), (688, 960907), (892, 741148), (1112, 594518), (1333, 495952), (1784, 370574), (2224, 297259), (2666, 247976), (3568, 185287), (4309, 153424), (5332, 123988), (5977, 110608), (6913, 95632), (8618, 76712), (9589, 68944), (10664, 61994), (11954, 55304), (13826, 47816), (17236, 38356), (19178, 34472), (21328, 30997), (23908, 27652)]