251288520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1021}}^1$

素因数の和:1335

約数の個数: 128

約数和(自身を含む): 865347840

約数和(自身を除く): 614059320

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, 140, 168, 210, 280, 293, 420, 586, 840, 879, 1021, 1172, 1465, 1758, 2042, 2051, 2344, 2930, 3063, 3516, 4084, 4102, 4395, 5105, 5860, 6126, 6153, 7032, 7147, 8168, 8204, 8790, 10210, 10255, 11720, 12252, 12306, 14294, 15315, 16408, 17580, 20420, 20510, 21441, 24504, 24612, 28588, 30630, 30765, 35160, 35735, 40840, 41020, 42882, 49224, 57176, 61260, 61530, 71470, 82040, 85764, 107205, 122520, 123060, 142940, 171528, 214410, 246120, 285880, 299153, 428820, 598306, 857640, 897459, 1196612, 1495765, 1794918, 2094071, 2393224, 2991530, 3589836, 4188142, 4487295, 5983060, 6282213, 7179672, 8376284, 8974590, 10470355, 11966120, 12564426, 16752568, 17949180, 20940710, 25128852, 31411065, 35898360, 41881420, 50257704, 62822130, 83762840, 125644260, 251288520]

約数ペア:

[(1, 251288520), (2, 125644260), (3, 83762840), (4, 62822130), (5, 50257704), (6, 41881420), (7, 35898360), (8, 31411065), (10, 25128852), (12, 20940710), (14, 17949180), (15, 16752568), (20, 12564426), (21, 11966120), (24, 10470355), (28, 8974590), (30, 8376284), (35, 7179672), (40, 6282213), (42, 5983060), (56, 4487295), (60, 4188142), (70, 3589836), (84, 2991530), (105, 2393224), (120, 2094071), (140, 1794918), (168, 1495765), (210, 1196612), (280, 897459), (293, 857640), (420, 598306), (586, 428820), (840, 299153), (879, 285880), (1021, 246120), (1172, 214410), (1465, 171528), (1758, 142940), (2042, 123060), (2051, 122520), (2344, 107205), (2930, 85764), (3063, 82040), (3516, 71470), (4084, 61530), (4102, 61260), (4395, 57176), (5105, 49224), (5860, 42882), (6126, 41020), (6153, 40840), (7032, 35735), (7147, 35160), (8168, 30765), (8204, 30630), (8790, 28588), (10210, 24612), (10255, 24504), (11720, 21441), (12252, 20510), (12306, 20420), (14294, 17580), (15315, 16408)]