311490540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{317}}^1$

素因数の和:488

約数の個数: 144

約数和(自身を含む): 975094848

約数和(自身を除く): 663604308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 103, 106, 159, 180, 206, 212, 265, 309, 317, 318, 412, 477, 515, 530, 618, 634, 636, 795, 927, 951, 954, 1030, 1060, 1236, 1268, 1545, 1585, 1590, 1854, 1902, 1908, 2060, 2385, 2853, 3090, 3170, 3180, 3708, 3804, 4635, 4755, 4770, 5459, 5706, 6180, 6340, 9270, 9510, 9540, 10918, 11412, 14265, 16377, 16801, 18540, 19020, 21836, 27295, 28530, 32651, 32754, 33602, 49131, 50403, 54590, 57060, 65302, 65508, 67204, 81885, 84005, 97953, 98262, 100806, 109180, 130604, 151209, 163255, 163770, 168010, 195906, 196524, 201612, 245655, 252015, 293859, 302418, 326510, 327540, 336020, 391812, 489765, 491310, 504030, 587718, 604836, 653020, 756045, 979530, 982620, 1008060, 1175436, 1469295, 1512090, 1730503, 1959060, 2938590, 3024180, 3461006, 5191509, 5877180, 6922012, 8652515, 10383018, 15574527, 17305030, 20766036, 25957545, 31149054, 34610060, 51915090, 62298108, 77872635, 103830180, 155745270, 311490540]

約数ペア:

[(1, 311490540), (2, 155745270), (3, 103830180), (4, 77872635), (5, 62298108), (6, 51915090), (9, 34610060), (10, 31149054), (12, 25957545), (15, 20766036), (18, 17305030), (20, 15574527), (30, 10383018), (36, 8652515), (45, 6922012), (53, 5877180), (60, 5191509), (90, 3461006), (103, 3024180), (106, 2938590), (159, 1959060), (180, 1730503), (206, 1512090), (212, 1469295), (265, 1175436), (309, 1008060), (317, 982620), (318, 979530), (412, 756045), (477, 653020), (515, 604836), (530, 587718), (618, 504030), (634, 491310), (636, 489765), (795, 391812), (927, 336020), (951, 327540), (954, 326510), (1030, 302418), (1060, 293859), (1236, 252015), (1268, 245655), (1545, 201612), (1585, 196524), (1590, 195906), (1854, 168010), (1902, 163770), (1908, 163255), (2060, 151209), (2385, 130604), (2853, 109180), (3090, 100806), (3170, 98262), (3180, 97953), (3708, 84005), (3804, 81885), (4635, 67204), (4755, 65508), (4770, 65302), (5459, 57060), (5706, 54590), (6180, 50403), (6340, 49131), (9270, 33602), (9510, 32754), (9540, 32651), (10918, 28530), (11412, 27295), (14265, 21836), (16377, 19020), (16801, 18540)]