1311829480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4787}}^1$

素因数の和:4859

約数の個数: 128

約数和(自身を含む): 3474938880

約数和(自身を除く): 2163109400

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 31, 34, 40, 52, 62, 65, 68, 85, 104, 124, 130, 136, 155, 170, 221, 248, 260, 310, 340, 403, 442, 520, 527, 620, 680, 806, 884, 1054, 1105, 1240, 1612, 1768, 2015, 2108, 2210, 2635, 3224, 4030, 4216, 4420, 4787, 5270, 6851, 8060, 8840, 9574, 10540, 13702, 16120, 19148, 21080, 23935, 27404, 34255, 38296, 47870, 54808, 62231, 68510, 81379, 95740, 124462, 137020, 148397, 162758, 191480, 248924, 274040, 296794, 311155, 325516, 406895, 497848, 593588, 622310, 651032, 741985, 813790, 1057927, 1187176, 1244620, 1483970, 1627580, 1929161, 2115854, 2489240, 2522749, 2967940, 3255160, 3858322, 4231708, 5045498, 5289635, 5935880, 7716644, 8463416, 9645805, 10090996, 10579270, 12613745, 15433288, 19291610, 20181992, 21158540, 25227490, 32795737, 38583220, 42317080, 50454980, 65591474, 77166440, 100909960, 131182948, 163978685, 262365896, 327957370, 655914740, 1311829480]

約数ペア:

[(1, 1311829480), (2, 655914740), (4, 327957370), (5, 262365896), (8, 163978685), (10, 131182948), (13, 100909960), (17, 77166440), (20, 65591474), (26, 50454980), (31, 42317080), (34, 38583220), (40, 32795737), (52, 25227490), (62, 21158540), (65, 20181992), (68, 19291610), (85, 15433288), (104, 12613745), (124, 10579270), (130, 10090996), (136, 9645805), (155, 8463416), (170, 7716644), (221, 5935880), (248, 5289635), (260, 5045498), (310, 4231708), (340, 3858322), (403, 3255160), (442, 2967940), (520, 2522749), (527, 2489240), (620, 2115854), (680, 1929161), (806, 1627580), (884, 1483970), (1054, 1244620), (1105, 1187176), (1240, 1057927), (1612, 813790), (1768, 741985), (2015, 651032), (2108, 622310), (2210, 593588), (2635, 497848), (3224, 406895), (4030, 325516), (4216, 311155), (4420, 296794), (4787, 274040), (5270, 248924), (6851, 191480), (8060, 162758), (8840, 148397), (9574, 137020), (10540, 124462), (13702, 95740), (16120, 81379), (19148, 68510), (21080, 62231), (23935, 54808), (27404, 47870), (34255, 38296)]