61781565

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1367}}^1$

素因数の和:1529

約数の個数: 32

約数和(自身を含む): 104011776

約数和(自身を除く): 42230211

約数列:

[1, 3, 5, 15, 23, 69, 115, 131, 345, 393, 655, 1367, 1965, 3013, 4101, 6835, 9039, 15065, 20505, 31441, 45195, 94323, 157205, 179077, 471615, 537231, 895385, 2686155, 4118771, 12356313, 20593855, 61781565]

約数ペア:

[(1, 61781565), (3, 20593855), (5, 12356313), (15, 4118771), (23, 2686155), (69, 895385), (115, 537231), (131, 471615), (345, 179077), (393, 157205), (655, 94323), (1367, 45195), (1965, 31441), (3013, 20505), (4101, 15065), (6835, 9039)]