18561595

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 25502400

約数和(自身を除く): 6940805

約数列:

[1, 5, 13, 29, 43, 65, 145, 215, 229, 377, 559, 1145, 1247, 1885, 2795, 2977, 6235, 6641, 9847, 14885, 16211, 33205, 49235, 81055, 86333, 128011, 285563, 431665, 640055, 1427815, 3712319, 18561595]

約数ペア:

[(1, 18561595), (5, 3712319), (13, 1427815), (29, 640055), (43, 431665), (65, 285563), (145, 128011), (215, 86333), (229, 81055), (377, 49235), (559, 33205), (1145, 16211), (1247, 14885), (1885, 9847), (2795, 6641), (2977, 6235)]