77889740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{204973}}^1$

素因数の和:205001

約数の個数: 24

約数和(自身を含む): 172178160

約数和(自身を除く): 94288420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 204973, 409946, 819892, 1024865, 2049730, 3894487, 4099460, 7788974, 15577948, 19472435, 38944870, 77889740]

約数ペア:

[(1, 77889740), (2, 38944870), (4, 19472435), (5, 15577948), (10, 7788974), (19, 4099460), (20, 3894487), (38, 2049730), (76, 1024865), (95, 819892), (190, 409946), (380, 204973)]