31257240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 108380160

約数和(自身を除く): 77122920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 127, 140, 168, 210, 254, 280, 293, 381, 420, 508, 586, 635, 762, 840, 879, 889, 1016, 1172, 1270, 1465, 1524, 1758, 1778, 1905, 2051, 2344, 2540, 2667, 2930, 3048, 3516, 3556, 3810, 4102, 4395, 4445, 5080, 5334, 5860, 6153, 7032, 7112, 7620, 8204, 8790, 8890, 10255, 10668, 11720, 12306, 13335, 15240, 16408, 17580, 17780, 20510, 21336, 24612, 26670, 30765, 35160, 35560, 37211, 41020, 49224, 53340, 61530, 74422, 82040, 106680, 111633, 123060, 148844, 186055, 223266, 246120, 260477, 297688, 372110, 446532, 520954, 558165, 744220, 781431, 893064, 1041908, 1116330, 1302385, 1488440, 1562862, 2083816, 2232660, 2604770, 3125724, 3907155, 4465320, 5209540, 6251448, 7814310, 10419080, 15628620, 31257240]

約数ペア:

[(1, 31257240), (2, 15628620), (3, 10419080), (4, 7814310), (5, 6251448), (6, 5209540), (7, 4465320), (8, 3907155), (10, 3125724), (12, 2604770), (14, 2232660), (15, 2083816), (20, 1562862), (21, 1488440), (24, 1302385), (28, 1116330), (30, 1041908), (35, 893064), (40, 781431), (42, 744220), (56, 558165), (60, 520954), (70, 446532), (84, 372110), (105, 297688), (120, 260477), (127, 246120), (140, 223266), (168, 186055), (210, 148844), (254, 123060), (280, 111633), (293, 106680), (381, 82040), (420, 74422), (508, 61530), (586, 53340), (635, 49224), (762, 41020), (840, 37211), (879, 35560), (889, 35160), (1016, 30765), (1172, 26670), (1270, 24612), (1465, 21336), (1524, 20510), (1758, 17780), (1778, 17580), (1905, 16408), (2051, 15240), (2344, 13335), (2540, 12306), (2667, 11720), (2930, 10668), (3048, 10255), (3516, 8890), (3556, 8790), (3810, 8204), (4102, 7620), (4395, 7112), (4445, 7032), (5080, 6153), (5334, 5860)]