19940004

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1181}}^1$

素因数の和:1265

約数の個数: 72

約数和(自身を含む): 58513728

約数和(自身を除く): 38573724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 67, 84, 126, 134, 201, 252, 268, 402, 469, 603, 804, 938, 1181, 1206, 1407, 1876, 2362, 2412, 2814, 3543, 4221, 4724, 5628, 7086, 8267, 8442, 10629, 14172, 16534, 16884, 21258, 24801, 33068, 42516, 49602, 74403, 79127, 99204, 148806, 158254, 237381, 297612, 316508, 474762, 553889, 712143, 949524, 1107778, 1424286, 1661667, 2215556, 2848572, 3323334, 4985001, 6646668, 9970002, 19940004]

約数ペア:

[(1, 19940004), (2, 9970002), (3, 6646668), (4, 4985001), (6, 3323334), (7, 2848572), (9, 2215556), (12, 1661667), (14, 1424286), (18, 1107778), (21, 949524), (28, 712143), (36, 553889), (42, 474762), (63, 316508), (67, 297612), (84, 237381), (126, 158254), (134, 148806), (201, 99204), (252, 79127), (268, 74403), (402, 49602), (469, 42516), (603, 33068), (804, 24801), (938, 21258), (1181, 16884), (1206, 16534), (1407, 14172), (1876, 10629), (2362, 8442), (2412, 8267), (2814, 7086), (3543, 5628), (4221, 4724)]