4381780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{887}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 10442880

約数和(自身を除く): 6061100

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 887, 988, 1235, 1774, 2470, 3548, 4435, 4940, 8870, 11531, 16853, 17740, 23062, 33706, 46124, 57655, 67412, 84265, 115310, 168530, 219089, 230620, 337060, 438178, 876356, 1095445, 2190890, 4381780]

約数ペア:

[(1, 4381780), (2, 2190890), (4, 1095445), (5, 876356), (10, 438178), (13, 337060), (19, 230620), (20, 219089), (26, 168530), (38, 115310), (52, 84265), (65, 67412), (76, 57655), (95, 46124), (130, 33706), (190, 23062), (247, 17740), (260, 16853), (380, 11531), (494, 8870), (887, 4940), (988, 4435), (1235, 3548), (1774, 2470)]