19244225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{769}}^1$

素因数の和:810

約数の個数: 48

約数和(自身を含む): 32081280

約数和(自身を除く): 12837055

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 143, 175, 275, 325, 385, 455, 715, 769, 1001, 1925, 2275, 3575, 3845, 5005, 5383, 8459, 9997, 19225, 25025, 26915, 42295, 49985, 59213, 69979, 109967, 134575, 211475, 249925, 296065, 349895, 549835, 769769, 1480325, 1749475, 2749175, 3848845, 19244225]

約数ペア:

[(1, 19244225), (5, 3848845), (7, 2749175), (11, 1749475), (13, 1480325), (25, 769769), (35, 549835), (55, 349895), (65, 296065), (77, 249925), (91, 211475), (143, 134575), (175, 109967), (275, 69979), (325, 59213), (385, 49985), (455, 42295), (715, 26915), (769, 25025), (1001, 19225), (1925, 9997), (2275, 8459), (3575, 5383), (3845, 5005)]