261235760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{105337}}^1$

素因数の和:105381

約数の個数: 40

約数和(自身を含む): 626971776

約数和(自身を除く): 365736016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 105337, 210674, 421348, 526685, 842696, 1053370, 1685392, 2106740, 3265447, 4213480, 6530894, 8426960, 13061788, 16327235, 26123576, 32654470, 52247152, 65308940, 130617880, 261235760]

約数ペア:

[(1, 261235760), (2, 130617880), (4, 65308940), (5, 52247152), (8, 32654470), (10, 26123576), (16, 16327235), (20, 13061788), (31, 8426960), (40, 6530894), (62, 4213480), (80, 3265447), (124, 2106740), (155, 1685392), (248, 1053370), (310, 842696), (496, 526685), (620, 421348), (1240, 210674), (2480, 105337)]