81616005

素因数分解:

$3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{6949}}^1$

素因数の和:6995

約数の個数: 40

約数和(自身を含む): 151371000

約数和(自身を除く): 69754995

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 261, 405, 435, 783, 1305, 2349, 3915, 6949, 11745, 20847, 34745, 62541, 104235, 187623, 201521, 312705, 562869, 604563, 938115, 1007605, 1813689, 2814345, 3022815, 5441067, 9068445, 16323201, 27205335, 81616005]

約数ペア:

[(1, 81616005), (3, 27205335), (5, 16323201), (9, 9068445), (15, 5441067), (27, 3022815), (29, 2814345), (45, 1813689), (81, 1007605), (87, 938115), (135, 604563), (145, 562869), (261, 312705), (405, 201521), (435, 187623), (783, 104235), (1305, 62541), (2349, 34745), (3915, 20847), (6949, 11745)]