19045565

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 29942784

約数和(自身を除く): 10897219

約数列:

[1, 5, 7, 11, 35, 37, 49, 55, 77, 185, 191, 245, 259, 385, 407, 539, 955, 1295, 1337, 1813, 2035, 2101, 2695, 2849, 6685, 7067, 9065, 9359, 10505, 14245, 14707, 19943, 35335, 46795, 49469, 73535, 77737, 99715, 102949, 247345, 346283, 388685, 514745, 544159, 1731415, 2720795, 3809113, 19045565]

約数ペア:

[(1, 19045565), (5, 3809113), (7, 2720795), (11, 1731415), (35, 544159), (37, 514745), (49, 388685), (55, 346283), (77, 247345), (185, 102949), (191, 99715), (245, 77737), (259, 73535), (385, 49469), (407, 46795), (539, 35335), (955, 19943), (1295, 14707), (1337, 14245), (1813, 10505), (2035, 9359), (2101, 9065), (2695, 7067), (2849, 6685)]