256295520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13691}}^1$

素因数の和:13725

約数の個数: 144

約数和(自身を含む): 941954832

約数和(自身を除く): 685659312

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4680, 6240, 9360, 13691, 18720, 27382, 41073, 54764, 68455, 82146, 109528, 123219, 136910, 164292, 177983, 205365, 219056, 246438, 273820, 328584, 355966, 410730, 438112, 492876, 533949, 547640, 616095, 657168, 711932, 821460, 889915, 985752, 1067898, 1095280, 1232190, 1314336, 1423864, 1601847, 1642920, 1779830, 1971504, 2135796, 2190560, 2464380, 2669745, 2847728, 3203694, 3285840, 3559660, 3943008, 4271592, 4928760, 5339490, 5695456, 6407388, 6571680, 7119320, 8009235, 8543184, 9857520, 10678980, 12814776, 14238640, 16018470, 17086368, 19715040, 21357960, 25629552, 28477280, 32036940, 42715920, 51259104, 64073880, 85431840, 128147760, 256295520]

約数ペア:

[(1, 256295520), (2, 128147760), (3, 85431840), (4, 64073880), (5, 51259104), (6, 42715920), (8, 32036940), (9, 28477280), (10, 25629552), (12, 21357960), (13, 19715040), (15, 17086368), (16, 16018470), (18, 14238640), (20, 12814776), (24, 10678980), (26, 9857520), (30, 8543184), (32, 8009235), (36, 7119320), (39, 6571680), (40, 6407388), (45, 5695456), (48, 5339490), (52, 4928760), (60, 4271592), (65, 3943008), (72, 3559660), (78, 3285840), (80, 3203694), (90, 2847728), (96, 2669745), (104, 2464380), (117, 2190560), (120, 2135796), (130, 1971504), (144, 1779830), (156, 1642920), (160, 1601847), (180, 1423864), (195, 1314336), (208, 1232190), (234, 1095280), (240, 1067898), (260, 985752), (288, 889915), (312, 821460), (360, 711932), (390, 657168), (416, 616095), (468, 547640), (480, 533949), (520, 492876), (585, 438112), (624, 410730), (720, 355966), (780, 328584), (936, 273820), (1040, 246438), (1170, 219056), (1248, 205365), (1440, 177983), (1560, 164292), (1872, 136910), (2080, 123219), (2340, 109528), (3120, 82146), (3744, 68455), (4680, 54764), (6240, 41073), (9360, 27382), (13691, 18720)]