21990442000

素因数分解:

$2^4\times 5^3\times {\mathrm{53}}^1\times {\mathrm{207457}}^1$

素因数の和:207533

約数の個数: 80

約数和(自身を含む): 54176411952

約数和(自身を除く): 32185969952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 53, 80, 100, 106, 125, 200, 212, 250, 265, 400, 424, 500, 530, 848, 1000, 1060, 1325, 2000, 2120, 2650, 4240, 5300, 6625, 10600, 13250, 21200, 26500, 53000, 106000, 207457, 414914, 829828, 1037285, 1659656, 2074570, 3319312, 4149140, 5186425, 8298280, 10372850, 10995221, 16596560, 20745700, 21990442, 25932125, 41491400, 43980884, 51864250, 54976105, 82982800, 87961768, 103728500, 109952210, 175923536, 207457000, 219904420, 274880525, 414914000, 439808840, 549761050, 879617680, 1099522100, 1374402625, 2199044200, 2748805250, 4398088400, 5497610500, 10995221000, 21990442000]

約数ペア:

[(1, 21990442000), (2, 10995221000), (4, 5497610500), (5, 4398088400), (8, 2748805250), (10, 2199044200), (16, 1374402625), (20, 1099522100), (25, 879617680), (40, 549761050), (50, 439808840), (53, 414914000), (80, 274880525), (100, 219904420), (106, 207457000), (125, 175923536), (200, 109952210), (212, 103728500), (250, 87961768), (265, 82982800), (400, 54976105), (424, 51864250), (500, 43980884), (530, 41491400), (848, 25932125), (1000, 21990442), (1060, 20745700), (1325, 16596560), (2000, 10995221), (2120, 10372850), (2650, 8298280), (4240, 5186425), (5300, 4149140), (6625, 3319312), (10600, 2074570), (13250, 1659656), (21200, 1037285), (26500, 829828), (53000, 414914), (106000, 207457)]