13456520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1$

素因数の和:303

約数の個数: 128

約数和(自身を含む): 40124160

約数和(自身を除く): 26667640

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 85, 88, 110, 119, 136, 140, 154, 170, 187, 220, 238, 257, 280, 308, 340, 374, 385, 440, 476, 514, 595, 616, 680, 748, 770, 935, 952, 1028, 1190, 1285, 1309, 1496, 1540, 1799, 1870, 2056, 2380, 2570, 2618, 2827, 3080, 3598, 3740, 4369, 4760, 5140, 5236, 5654, 6545, 7196, 7480, 8738, 8995, 10280, 10472, 11308, 13090, 14135, 14392, 17476, 17990, 19789, 21845, 22616, 26180, 28270, 30583, 34952, 35980, 39578, 43690, 48059, 52360, 56540, 61166, 71960, 79156, 87380, 96118, 98945, 113080, 122332, 152915, 158312, 174760, 192236, 197890, 240295, 244664, 305830, 336413, 384472, 395780, 480590, 611660, 672826, 791560, 961180, 1223320, 1345652, 1682065, 1922360, 2691304, 3364130, 6728260, 13456520]

約数ペア:

[(1, 13456520), (2, 6728260), (4, 3364130), (5, 2691304), (7, 1922360), (8, 1682065), (10, 1345652), (11, 1223320), (14, 961180), (17, 791560), (20, 672826), (22, 611660), (28, 480590), (34, 395780), (35, 384472), (40, 336413), (44, 305830), (55, 244664), (56, 240295), (68, 197890), (70, 192236), (77, 174760), (85, 158312), (88, 152915), (110, 122332), (119, 113080), (136, 98945), (140, 96118), (154, 87380), (170, 79156), (187, 71960), (220, 61166), (238, 56540), (257, 52360), (280, 48059), (308, 43690), (340, 39578), (374, 35980), (385, 34952), (440, 30583), (476, 28270), (514, 26180), (595, 22616), (616, 21845), (680, 19789), (748, 17990), (770, 17476), (935, 14392), (952, 14135), (1028, 13090), (1190, 11308), (1285, 10472), (1309, 10280), (1496, 8995), (1540, 8738), (1799, 7480), (1870, 7196), (2056, 6545), (2380, 5654), (2570, 5236), (2618, 5140), (2827, 4760), (3080, 4369), (3598, 3740)]