821404920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22741}}^1$

素因数の和:22805

約数の個数: 128

約数和(自身を含む): 2881866240

約数和(自身を除く): 2060461320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 430, 516, 602, 645, 840, 860, 903, 1032, 1204, 1290, 1505, 1720, 1806, 2408, 2580, 3010, 3612, 4515, 5160, 6020, 7224, 9030, 12040, 18060, 22741, 36120, 45482, 68223, 90964, 113705, 136446, 159187, 181928, 227410, 272892, 318374, 341115, 454820, 477561, 545784, 636748, 682230, 795935, 909640, 955122, 977863, 1273496, 1364460, 1591870, 1910244, 1955726, 2387805, 2728920, 2933589, 3183740, 3820488, 3911452, 4775610, 4889315, 5867178, 6367480, 6845041, 7822904, 9551220, 9778630, 11734356, 13690082, 14667945, 19102440, 19557260, 20535123, 23468712, 27380164, 29335890, 34225205, 39114520, 41070246, 54760328, 58671780, 68450410, 82140492, 102675615, 117343560, 136900820, 164280984, 205351230, 273801640, 410702460, 821404920]

約数ペア:

[(1, 821404920), (2, 410702460), (3, 273801640), (4, 205351230), (5, 164280984), (6, 136900820), (7, 117343560), (8, 102675615), (10, 82140492), (12, 68450410), (14, 58671780), (15, 54760328), (20, 41070246), (21, 39114520), (24, 34225205), (28, 29335890), (30, 27380164), (35, 23468712), (40, 20535123), (42, 19557260), (43, 19102440), (56, 14667945), (60, 13690082), (70, 11734356), (84, 9778630), (86, 9551220), (105, 7822904), (120, 6845041), (129, 6367480), (140, 5867178), (168, 4889315), (172, 4775610), (210, 3911452), (215, 3820488), (258, 3183740), (280, 2933589), (301, 2728920), (344, 2387805), (420, 1955726), (430, 1910244), (516, 1591870), (602, 1364460), (645, 1273496), (840, 977863), (860, 955122), (903, 909640), (1032, 795935), (1204, 682230), (1290, 636748), (1505, 545784), (1720, 477561), (1806, 454820), (2408, 341115), (2580, 318374), (3010, 272892), (3612, 227410), (4515, 181928), (5160, 159187), (6020, 136446), (7224, 113705), (9030, 90964), (12040, 68223), (18060, 45482), (22741, 36120)]