7213895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 32

約数和(自身を含む): 9979200

約数和(自身を除く): 2765305

約数列:

[1, 5, 13, 29, 43, 65, 89, 145, 215, 377, 445, 559, 1157, 1247, 1885, 2581, 2795, 3827, 5785, 6235, 12905, 16211, 19135, 33553, 49751, 81055, 110983, 167765, 248755, 554915, 1442779, 7213895]

約数ペア:

[(1, 7213895), (5, 1442779), (13, 554915), (29, 248755), (43, 167765), (65, 110983), (89, 81055), (145, 49751), (215, 33553), (377, 19135), (445, 16211), (559, 12905), (1157, 6235), (1247, 5785), (1885, 3827), (2581, 2795)]