261763280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{6637}}^1$

素因数の和:6696

約数の個数: 80

約数和(自身を含む): 666720720

約数和(自身を除く): 404957440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 493, 580, 680, 986, 1160, 1360, 1972, 2320, 2465, 3944, 4930, 6637, 7888, 9860, 13274, 19720, 26548, 33185, 39440, 53096, 66370, 106192, 112829, 132740, 192473, 225658, 265480, 384946, 451316, 530960, 564145, 769892, 902632, 962365, 1128290, 1539784, 1805264, 1924730, 2256580, 3079568, 3272041, 3849460, 4513160, 6544082, 7698920, 9026320, 13088164, 15397840, 16360205, 26176328, 32720410, 52352656, 65440820, 130881640, 261763280]

約数ペア:

[(1, 261763280), (2, 130881640), (4, 65440820), (5, 52352656), (8, 32720410), (10, 26176328), (16, 16360205), (17, 15397840), (20, 13088164), (29, 9026320), (34, 7698920), (40, 6544082), (58, 4513160), (68, 3849460), (80, 3272041), (85, 3079568), (116, 2256580), (136, 1924730), (145, 1805264), (170, 1539784), (232, 1128290), (272, 962365), (290, 902632), (340, 769892), (464, 564145), (493, 530960), (580, 451316), (680, 384946), (986, 265480), (1160, 225658), (1360, 192473), (1972, 132740), (2320, 112829), (2465, 106192), (3944, 66370), (4930, 53096), (6637, 39440), (7888, 33185), (9860, 26548), (13274, 19720)]