19804796

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 42230160

約数和(自身を除く): 22425364

約数列:

[1, 2, 4, 11, 17, 22, 29, 34, 44, 58, 68, 83, 116, 121, 166, 187, 242, 319, 332, 374, 484, 493, 638, 748, 913, 986, 1276, 1411, 1826, 1972, 2057, 2407, 2822, 3509, 3652, 4114, 4814, 5423, 5644, 7018, 8228, 9628, 10043, 10846, 14036, 15521, 20086, 21692, 26477, 31042, 40172, 40919, 52954, 59653, 62084, 81838, 105908, 119306, 163676, 170731, 238612, 291247, 341462, 450109, 582494, 682924, 900218, 1164988, 1800436, 4951199, 9902398, 19804796]

約数ペア:

[(1, 19804796), (2, 9902398), (4, 4951199), (11, 1800436), (17, 1164988), (22, 900218), (29, 682924), (34, 582494), (44, 450109), (58, 341462), (68, 291247), (83, 238612), (116, 170731), (121, 163676), (166, 119306), (187, 105908), (242, 81838), (319, 62084), (332, 59653), (374, 52954), (484, 40919), (493, 40172), (638, 31042), (748, 26477), (913, 21692), (986, 20086), (1276, 15521), (1411, 14036), (1826, 10846), (1972, 10043), (2057, 9628), (2407, 8228), (2822, 7018), (3509, 5644), (3652, 5423), (4114, 4814)]