219809120

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^2\times {\mathrm{743}}^1$

素因数の和:844

約数の個数: 72

約数和(自身を含む): 532372176

約数和(自身を除く): 312563056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 743, 860, 1376, 1486, 1720, 1849, 2972, 3440, 3698, 3715, 5944, 6880, 7396, 7430, 9245, 11888, 14792, 14860, 18490, 23776, 29584, 29720, 31949, 36980, 59168, 59440, 63898, 73960, 118880, 127796, 147920, 159745, 255592, 295840, 319490, 511184, 638980, 1022368, 1277960, 1373807, 2555920, 2747614, 5111840, 5495228, 6869035, 10990456, 13738070, 21980912, 27476140, 43961824, 54952280, 109904560, 219809120]

約数ペア:

[(1, 219809120), (2, 109904560), (4, 54952280), (5, 43961824), (8, 27476140), (10, 21980912), (16, 13738070), (20, 10990456), (32, 6869035), (40, 5495228), (43, 5111840), (80, 2747614), (86, 2555920), (160, 1373807), (172, 1277960), (215, 1022368), (344, 638980), (430, 511184), (688, 319490), (743, 295840), (860, 255592), (1376, 159745), (1486, 147920), (1720, 127796), (1849, 118880), (2972, 73960), (3440, 63898), (3698, 59440), (3715, 59168), (5944, 36980), (6880, 31949), (7396, 29720), (7430, 29584), (9245, 23776), (11888, 18490), (14792, 14860)]