291216945

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{3989}}^1$

素因数の和:4185

約数の個数: 32

約数和(自身を含む): 484162560

約数和(自身を除く): 192945615

約数列:

[1, 3, 5, 15, 31, 93, 155, 157, 465, 471, 785, 2355, 3989, 4867, 11967, 14601, 19945, 24335, 59835, 73005, 123659, 370977, 618295, 626273, 1854885, 1878819, 3131365, 9394095, 19414463, 58243389, 97072315, 291216945]

約数ペア:

[(1, 291216945), (3, 97072315), (5, 58243389), (15, 19414463), (31, 9394095), (93, 3131365), (155, 1878819), (157, 1854885), (465, 626273), (471, 618295), (785, 370977), (2355, 123659), (3989, 73005), (4867, 59835), (11967, 24335), (14601, 19945)]