1722278720

素因数分解:

$2^6\times 5^1\times {\mathrm{991}}^1\times {\mathrm{5431}}^1$

素因数の和:6439

約数の個数: 56

約数和(自身を含む): 4106070528

約数和(自身を除く): 2383791808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 991, 1982, 3964, 4955, 5431, 7928, 9910, 10862, 15856, 19820, 21724, 27155, 31712, 39640, 43448, 54310, 63424, 79280, 86896, 108620, 158560, 173792, 217240, 317120, 347584, 434480, 868960, 1737920, 5382121, 10764242, 21528484, 26910605, 43056968, 53821210, 86113936, 107642420, 172227872, 215284840, 344455744, 430569680, 861139360, 1722278720]

約数ペア:

[(1, 1722278720), (2, 861139360), (4, 430569680), (5, 344455744), (8, 215284840), (10, 172227872), (16, 107642420), (20, 86113936), (32, 53821210), (40, 43056968), (64, 26910605), (80, 21528484), (160, 10764242), (320, 5382121), (991, 1737920), (1982, 868960), (3964, 434480), (4955, 347584), (5431, 317120), (7928, 217240), (9910, 173792), (10862, 158560), (15856, 108620), (19820, 86896), (21724, 79280), (27155, 63424), (31712, 54310), (39640, 43448)]