30986360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{24989}}^1$

素因数の和:25031

約数の個数: 32

約数和(自身を含む): 71971200

約数和(自身を除く): 40984840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 24989, 49978, 99956, 124945, 199912, 249890, 499780, 774659, 999560, 1549318, 3098636, 3873295, 6197272, 7746590, 15493180, 30986360]

約数ペア:

[(1, 30986360), (2, 15493180), (4, 7746590), (5, 6197272), (8, 3873295), (10, 3098636), (20, 1549318), (31, 999560), (40, 774659), (62, 499780), (124, 249890), (155, 199912), (248, 124945), (310, 99956), (620, 49978), (1240, 24989)]