155808640

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:400

約数の個数: 128

約数和(自身を含む): 409036320

約数和(自身を除く): 253227680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 64, 65, 80, 104, 122, 128, 130, 160, 208, 244, 260, 305, 307, 320, 416, 488, 520, 610, 614, 640, 793, 832, 976, 1040, 1220, 1228, 1535, 1586, 1664, 1952, 2080, 2440, 2456, 3070, 3172, 3904, 3965, 3991, 4160, 4880, 4912, 6140, 6344, 7808, 7930, 7982, 8320, 9760, 9824, 12280, 12688, 15860, 15964, 18727, 19520, 19648, 19955, 24560, 25376, 31720, 31928, 37454, 39040, 39296, 39910, 49120, 50752, 63440, 63856, 74908, 79820, 93635, 98240, 101504, 126880, 127712, 149816, 159640, 187270, 196480, 243451, 253760, 255424, 299632, 319280, 374540, 486902, 507520, 510848, 599264, 638560, 749080, 973804, 1198528, 1217255, 1277120, 1498160, 1947608, 2397056, 2434510, 2554240, 2996320, 3895216, 4869020, 5992640, 7790432, 9738040, 11985280, 15580864, 19476080, 31161728, 38952160, 77904320, 155808640]

約数ペア:

[(1, 155808640), (2, 77904320), (4, 38952160), (5, 31161728), (8, 19476080), (10, 15580864), (13, 11985280), (16, 9738040), (20, 7790432), (26, 5992640), (32, 4869020), (40, 3895216), (52, 2996320), (61, 2554240), (64, 2434510), (65, 2397056), (80, 1947608), (104, 1498160), (122, 1277120), (128, 1217255), (130, 1198528), (160, 973804), (208, 749080), (244, 638560), (260, 599264), (305, 510848), (307, 507520), (320, 486902), (416, 374540), (488, 319280), (520, 299632), (610, 255424), (614, 253760), (640, 243451), (793, 196480), (832, 187270), (976, 159640), (1040, 149816), (1220, 127712), (1228, 126880), (1535, 101504), (1586, 98240), (1664, 93635), (1952, 79820), (2080, 74908), (2440, 63856), (2456, 63440), (3070, 50752), (3172, 49120), (3904, 39910), (3965, 39296), (3991, 39040), (4160, 37454), (4880, 31928), (4912, 31720), (6140, 25376), (6344, 24560), (7808, 19955), (7930, 19648), (7982, 19520), (8320, 18727), (9760, 15964), (9824, 15860), (12280, 12688)]