81478320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4409}}^1$

素因数の和:4443

約数の個数: 160

約数和(自身を含む): 314979840

約数和(自身を除く): 233501520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 105, 110, 112, 120, 132, 140, 154, 165, 168, 176, 210, 220, 231, 240, 264, 280, 308, 330, 336, 385, 420, 440, 462, 528, 560, 616, 660, 770, 840, 880, 924, 1155, 1232, 1320, 1540, 1680, 1848, 2310, 2640, 3080, 3696, 4409, 4620, 6160, 8818, 9240, 13227, 17636, 18480, 22045, 26454, 30863, 35272, 44090, 48499, 52908, 61726, 66135, 70544, 88180, 92589, 96998, 105816, 123452, 132270, 145497, 154315, 176360, 185178, 193996, 211632, 242495, 246904, 264540, 290994, 308630, 339493, 352720, 370356, 387992, 462945, 484990, 493808, 529080, 581988, 617260, 678986, 727485, 740712, 775984, 925890, 969980, 1018479, 1058160, 1163976, 1234520, 1357972, 1454970, 1481424, 1697465, 1851780, 1939960, 2036958, 2327952, 2469040, 2715944, 2909940, 3394930, 3703560, 3879920, 4073916, 5092395, 5431888, 5819880, 6789860, 7407120, 8147832, 10184790, 11639760, 13579720, 16295664, 20369580, 27159440, 40739160, 81478320]

約数ペア:

[(1, 81478320), (2, 40739160), (3, 27159440), (4, 20369580), (5, 16295664), (6, 13579720), (7, 11639760), (8, 10184790), (10, 8147832), (11, 7407120), (12, 6789860), (14, 5819880), (15, 5431888), (16, 5092395), (20, 4073916), (21, 3879920), (22, 3703560), (24, 3394930), (28, 2909940), (30, 2715944), (33, 2469040), (35, 2327952), (40, 2036958), (42, 1939960), (44, 1851780), (48, 1697465), (55, 1481424), (56, 1454970), (60, 1357972), (66, 1234520), (70, 1163976), (77, 1058160), (80, 1018479), (84, 969980), (88, 925890), (105, 775984), (110, 740712), (112, 727485), (120, 678986), (132, 617260), (140, 581988), (154, 529080), (165, 493808), (168, 484990), (176, 462945), (210, 387992), (220, 370356), (231, 352720), (240, 339493), (264, 308630), (280, 290994), (308, 264540), (330, 246904), (336, 242495), (385, 211632), (420, 193996), (440, 185178), (462, 176360), (528, 154315), (560, 145497), (616, 132270), (660, 123452), (770, 105816), (840, 96998), (880, 92589), (924, 88180), (1155, 70544), (1232, 66135), (1320, 61726), (1540, 52908), (1680, 48499), (1848, 44090), (2310, 35272), (2640, 30863), (3080, 26454), (3696, 22045), (4409, 18480), (4620, 17636), (6160, 13227), (8818, 9240)]