68721885

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16421}}^1$

素因数の和:16466

約数の個数: 32

約数和(自身を含む): 126120960

約数和(自身を除く): 57399075

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 16421, 49263, 82105, 147789, 246315, 443367, 509051, 738945, 1527153, 2216835, 2545255, 4581459, 7635765, 13744377, 22907295, 68721885]

約数ペア:

[(1, 68721885), (3, 22907295), (5, 13744377), (9, 7635765), (15, 4581459), (27, 2545255), (31, 2216835), (45, 1527153), (93, 738945), (135, 509051), (155, 443367), (279, 246315), (465, 147789), (837, 82105), (1395, 49263), (4185, 16421)]