180978855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{1553}}^1$

素因数の和:2035

約数の個数: 32

約数和(自身を含む): 307468224

約数和(自身を除く): 126489369

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 457, 1371, 1553, 2285, 4659, 6855, 7765, 7769, 23295, 23307, 26401, 38845, 79203, 116535, 132005, 396015, 709721, 2129163, 3548605, 10645815, 12065257, 36195771, 60326285, 180978855]

約数ペア:

[(1, 180978855), (3, 60326285), (5, 36195771), (15, 12065257), (17, 10645815), (51, 3548605), (85, 2129163), (255, 709721), (457, 396015), (1371, 132005), (1553, 116535), (2285, 79203), (4659, 38845), (6855, 26401), (7765, 23307), (7769, 23295)]