1720044760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{25703}}^1$

素因数の和:25960

約数の個数: 64

約数和(自身を含む): 4441651200

約数和(自身を除く): 2721606440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 280, 478, 956, 1195, 1673, 1912, 2390, 3346, 4780, 6692, 8365, 9560, 13384, 16730, 25703, 33460, 51406, 66920, 102812, 128515, 179921, 205624, 257030, 359842, 514060, 719684, 899605, 1028120, 1439368, 1799210, 3598420, 6143017, 7196840, 12286034, 24572068, 30715085, 43001119, 49144136, 61430170, 86002238, 122860340, 172004476, 215005595, 245720680, 344008952, 430011190, 860022380, 1720044760]

約数ペア:

[(1, 1720044760), (2, 860022380), (4, 430011190), (5, 344008952), (7, 245720680), (8, 215005595), (10, 172004476), (14, 122860340), (20, 86002238), (28, 61430170), (35, 49144136), (40, 43001119), (56, 30715085), (70, 24572068), (140, 12286034), (239, 7196840), (280, 6143017), (478, 3598420), (956, 1799210), (1195, 1439368), (1673, 1028120), (1912, 899605), (2390, 719684), (3346, 514060), (4780, 359842), (6692, 257030), (8365, 205624), (9560, 179921), (13384, 128515), (16730, 102812), (25703, 66920), (33460, 51406)]