1211480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1019

約数の個数: 32

約数和(自身を含む): 2816640

約数和(自身を除く): 1605160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 977, 1240, 1954, 3908, 4885, 7816, 9770, 19540, 30287, 39080, 60574, 121148, 151435, 242296, 302870, 605740, 1211480]

約数ペア:

[(1, 1211480), (2, 605740), (4, 302870), (5, 242296), (8, 151435), (10, 121148), (20, 60574), (31, 39080), (40, 30287), (62, 19540), (124, 9770), (155, 7816), (248, 4885), (310, 3908), (620, 1954), (977, 1240)]