81580778

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{8831}}^1$

素因数の和:9013

約数の個数: 16

約数和(自身を含む): 127180800

約数和(自身を除く): 45600022

約数列:

[1, 2, 31, 62, 149, 298, 4619, 8831, 9238, 17662, 273761, 547522, 1315819, 2631638, 40790389, 81580778]

約数ペア:

[(1, 81580778), (2, 40790389), (31, 2631638), (62, 1315819), (149, 547522), (298, 273761), (4619, 17662), (8831, 9238)]