1640783888

素因数分解:

$2^4\times {\mathrm{419}}^1\times {\mathrm{244747}}^1$

素因数の和:245174

約数の個数: 20

約数和(自身を含む): 3186618960

約数和(自身を除く): 1545835072

約数列:

[1, 2, 4, 8, 16, 419, 838, 1676, 3352, 6704, 244747, 489494, 978988, 1957976, 3915952, 102548993, 205097986, 410195972, 820391944, 1640783888]

約数ペア:

[(1, 1640783888), (2, 820391944), (4, 410195972), (8, 205097986), (16, 102548993), (419, 3915952), (838, 1957976), (1676, 978988), (3352, 489494), (6704, 244747)]