261569440

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{449}}^1$

素因数の和:806

約数の個数: 96

約数和(自身を含む): 677678400

約数和(自身を除く): 416108960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 331, 352, 440, 449, 662, 880, 898, 1324, 1655, 1760, 1796, 2245, 2648, 3310, 3592, 3641, 4490, 4939, 5296, 6620, 7184, 7282, 8980, 9878, 10592, 13240, 14368, 14564, 17960, 18205, 19756, 24695, 26480, 29128, 35920, 36410, 39512, 49390, 52960, 58256, 71840, 72820, 79024, 98780, 116512, 145640, 148619, 158048, 197560, 291280, 297238, 395120, 582560, 594476, 743095, 790240, 1188952, 1486190, 1634809, 2377904, 2972380, 3269618, 4755808, 5944760, 6539236, 8174045, 11889520, 13078472, 16348090, 23779040, 26156944, 32696180, 52313888, 65392360, 130784720, 261569440]

約数ペア:

[(1, 261569440), (2, 130784720), (4, 65392360), (5, 52313888), (8, 32696180), (10, 26156944), (11, 23779040), (16, 16348090), (20, 13078472), (22, 11889520), (32, 8174045), (40, 6539236), (44, 5944760), (55, 4755808), (80, 3269618), (88, 2972380), (110, 2377904), (160, 1634809), (176, 1486190), (220, 1188952), (331, 790240), (352, 743095), (440, 594476), (449, 582560), (662, 395120), (880, 297238), (898, 291280), (1324, 197560), (1655, 158048), (1760, 148619), (1796, 145640), (2245, 116512), (2648, 98780), (3310, 79024), (3592, 72820), (3641, 71840), (4490, 58256), (4939, 52960), (5296, 49390), (6620, 39512), (7184, 36410), (7282, 35920), (8980, 29128), (9878, 26480), (10592, 24695), (13240, 19756), (14368, 18205), (14564, 17960)]