81794720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{10433}}^1$

素因数の和:10462

約数の個数: 72

約数和(自身を含む): 224810964

約数和(自身を除く): 143016244

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 10433, 20866, 41732, 52165, 73031, 83464, 104330, 146062, 166928, 208660, 292124, 333856, 365155, 417320, 511217, 584248, 730310, 834640, 1022434, 1168496, 1460620, 1669280, 2044868, 2336992, 2556085, 2921240, 4089736, 5112170, 5842480, 8179472, 10224340, 11684960, 16358944, 20448680, 40897360, 81794720]

約数ペア:

[(1, 81794720), (2, 40897360), (4, 20448680), (5, 16358944), (7, 11684960), (8, 10224340), (10, 8179472), (14, 5842480), (16, 5112170), (20, 4089736), (28, 2921240), (32, 2556085), (35, 2336992), (40, 2044868), (49, 1669280), (56, 1460620), (70, 1168496), (80, 1022434), (98, 834640), (112, 730310), (140, 584248), (160, 511217), (196, 417320), (224, 365155), (245, 333856), (280, 292124), (392, 208660), (490, 166928), (560, 146062), (784, 104330), (980, 83464), (1120, 73031), (1568, 52165), (1960, 41732), (3920, 20866), (7840, 10433)]