1665082720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{212383}}^1$

素因数の和:212412

約数の個数: 72

約数和(自身を含む): 4576025664

約数和(自身を除く): 2910942944

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, 212383, 424766, 849532, 1061915, 1486681, 1699064, 2123830, 2973362, 3398128, 4247660, 5946724, 6796256, 7433405, 8495320, 10406767, 11893448, 14866810, 16990640, 20813534, 23786896, 29733620, 33981280, 41627068, 47573792, 52033835, 59467240, 83254136, 104067670, 118934480, 166508272, 208135340, 237868960, 333016544, 416270680, 832541360, 1665082720]

約数ペア:

[(1, 1665082720), (2, 832541360), (4, 416270680), (5, 333016544), (7, 237868960), (8, 208135340), (10, 166508272), (14, 118934480), (16, 104067670), (20, 83254136), (28, 59467240), (32, 52033835), (35, 47573792), (40, 41627068), (49, 33981280), (56, 29733620), (70, 23786896), (80, 20813534), (98, 16990640), (112, 14866810), (140, 11893448), (160, 10406767), (196, 8495320), (224, 7433405), (245, 6796256), (280, 5946724), (392, 4247660), (490, 3398128), (560, 2973362), (784, 2123830), (980, 1699064), (1120, 1486681), (1568, 1061915), (1960, 849532), (3920, 424766), (7840, 212383)]