639049216

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1433}}^1$

素因数の和:1531

約数の個数: 80

約数和(自身を含む): 1396566864

約数和(自身を除く): 757517648

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 67, 104, 128, 134, 208, 256, 268, 416, 512, 536, 832, 871, 1072, 1433, 1664, 1742, 2144, 2866, 3328, 3484, 4288, 5732, 6656, 6968, 8576, 11464, 13936, 17152, 18629, 22928, 27872, 34304, 37258, 45856, 55744, 74516, 91712, 96011, 111488, 149032, 183424, 192022, 222976, 298064, 366848, 384044, 445952, 596128, 733696, 768088, 1192256, 1248143, 1536176, 2384512, 2496286, 3072352, 4769024, 4992572, 6144704, 9538048, 9985144, 12289408, 19970288, 24578816, 39940576, 49157632, 79881152, 159762304, 319524608, 639049216]

約数ペア:

[(1, 639049216), (2, 319524608), (4, 159762304), (8, 79881152), (13, 49157632), (16, 39940576), (26, 24578816), (32, 19970288), (52, 12289408), (64, 9985144), (67, 9538048), (104, 6144704), (128, 4992572), (134, 4769024), (208, 3072352), (256, 2496286), (268, 2384512), (416, 1536176), (512, 1248143), (536, 1192256), (832, 768088), (871, 733696), (1072, 596128), (1433, 445952), (1664, 384044), (1742, 366848), (2144, 298064), (2866, 222976), (3328, 192022), (3484, 183424), (4288, 149032), (5732, 111488), (6656, 96011), (6968, 91712), (8576, 74516), (11464, 55744), (13936, 45856), (17152, 37258), (18629, 34304), (22928, 27872)]