261114880

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3923}}^1$

素因数の和:3961

約数の個数: 88

約数和(自身を含む): 674723952

約数和(自身を除く): 413609072

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 512, 520, 640, 832, 1024, 1040, 1280, 1664, 2080, 2560, 3328, 3923, 4160, 5120, 6656, 7846, 8320, 13312, 15692, 16640, 19615, 31384, 33280, 39230, 50999, 62768, 66560, 78460, 101998, 125536, 156920, 203996, 251072, 254995, 313840, 407992, 502144, 509990, 627680, 815984, 1004288, 1019980, 1255360, 1631968, 2008576, 2039960, 2510720, 3263936, 4017152, 4079920, 5021440, 6527872, 8159840, 10042880, 13055744, 16319680, 20085760, 26111488, 32639360, 52222976, 65278720, 130557440, 261114880]

約数ペア:

[(1, 261114880), (2, 130557440), (4, 65278720), (5, 52222976), (8, 32639360), (10, 26111488), (13, 20085760), (16, 16319680), (20, 13055744), (26, 10042880), (32, 8159840), (40, 6527872), (52, 5021440), (64, 4079920), (65, 4017152), (80, 3263936), (104, 2510720), (128, 2039960), (130, 2008576), (160, 1631968), (208, 1255360), (256, 1019980), (260, 1004288), (320, 815984), (416, 627680), (512, 509990), (520, 502144), (640, 407992), (832, 313840), (1024, 254995), (1040, 251072), (1280, 203996), (1664, 156920), (2080, 125536), (2560, 101998), (3328, 78460), (3923, 66560), (4160, 62768), (5120, 50999), (6656, 39230), (7846, 33280), (8320, 31384), (13312, 19615), (15692, 16640)]