30989836

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{2357}}^1$

素因数の和:2553

約数の個数: 24

約数和(自身を含む): 57440880

約数和(自身を除く): 26451044

約数列:

[1, 2, 4, 19, 38, 76, 173, 346, 692, 2357, 3287, 4714, 6574, 9428, 13148, 44783, 89566, 179132, 407761, 815522, 1631044, 7747459, 15494918, 30989836]

約数ペア:

[(1, 30989836), (2, 15494918), (4, 7747459), (19, 1631044), (38, 815522), (76, 407761), (173, 179132), (346, 89566), (692, 44783), (2357, 13148), (3287, 9428), (4714, 6574)]