19494475

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:101

約数の個数: 96

約数和(自身を含む): 34997760

約数和(自身を除く): 15503285

約数列:

[1, 5, 7, 11, 13, 19, 25, 35, 41, 55, 65, 77, 91, 95, 133, 143, 175, 205, 209, 247, 275, 287, 325, 385, 451, 455, 475, 533, 665, 715, 779, 1001, 1025, 1045, 1235, 1435, 1463, 1729, 1925, 2255, 2275, 2665, 2717, 3157, 3325, 3575, 3731, 3895, 5005, 5225, 5453, 5863, 6175, 7175, 7315, 8569, 8645, 10127, 11275, 13325, 13585, 15785, 18655, 19019, 19475, 25025, 27265, 29315, 36575, 41041, 42845, 43225, 50635, 59983, 67925, 70889, 78925, 93275, 95095, 111397, 136325, 146575, 205205, 214225, 253175, 299915, 354445, 475475, 556985, 779779, 1026025, 1499575, 1772225, 2784925, 3898895, 19494475]

約数ペア:

[(1, 19494475), (5, 3898895), (7, 2784925), (11, 1772225), (13, 1499575), (19, 1026025), (25, 779779), (35, 556985), (41, 475475), (55, 354445), (65, 299915), (77, 253175), (91, 214225), (95, 205205), (133, 146575), (143, 136325), (175, 111397), (205, 95095), (209, 93275), (247, 78925), (275, 70889), (287, 67925), (325, 59983), (385, 50635), (451, 43225), (455, 42845), (475, 41041), (533, 36575), (665, 29315), (715, 27265), (779, 25025), (1001, 19475), (1025, 19019), (1045, 18655), (1235, 15785), (1435, 13585), (1463, 13325), (1729, 11275), (1925, 10127), (2255, 8645), (2275, 8569), (2665, 7315), (2717, 7175), (3157, 6175), (3325, 5863), (3575, 5453), (3731, 5225), (3895, 5005)]