81625680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1553}}^1$

素因数の和:1645

約数の個数: 120

約数和(自身を含む): 278060328

約数和(自身を除く): 196434648

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 73, 80, 90, 120, 144, 146, 180, 219, 240, 292, 360, 365, 438, 584, 657, 720, 730, 876, 1095, 1168, 1314, 1460, 1553, 1752, 2190, 2628, 2920, 3106, 3285, 3504, 4380, 4659, 5256, 5840, 6212, 6570, 7765, 8760, 9318, 10512, 12424, 13140, 13977, 15530, 17520, 18636, 23295, 24848, 26280, 27954, 31060, 37272, 46590, 52560, 55908, 62120, 69885, 74544, 93180, 111816, 113369, 124240, 139770, 186360, 223632, 226738, 279540, 340107, 372720, 453476, 559080, 566845, 680214, 906952, 1020321, 1118160, 1133690, 1360428, 1700535, 1813904, 2040642, 2267380, 2720856, 3401070, 4081284, 4534760, 5101605, 5441712, 6802140, 8162568, 9069520, 10203210, 13604280, 16325136, 20406420, 27208560, 40812840, 81625680]

約数ペア:

[(1, 81625680), (2, 40812840), (3, 27208560), (4, 20406420), (5, 16325136), (6, 13604280), (8, 10203210), (9, 9069520), (10, 8162568), (12, 6802140), (15, 5441712), (16, 5101605), (18, 4534760), (20, 4081284), (24, 3401070), (30, 2720856), (36, 2267380), (40, 2040642), (45, 1813904), (48, 1700535), (60, 1360428), (72, 1133690), (73, 1118160), (80, 1020321), (90, 906952), (120, 680214), (144, 566845), (146, 559080), (180, 453476), (219, 372720), (240, 340107), (292, 279540), (360, 226738), (365, 223632), (438, 186360), (584, 139770), (657, 124240), (720, 113369), (730, 111816), (876, 93180), (1095, 74544), (1168, 69885), (1314, 62120), (1460, 55908), (1553, 52560), (1752, 46590), (2190, 37272), (2628, 31060), (2920, 27954), (3106, 26280), (3285, 24848), (3504, 23295), (4380, 18636), (4659, 17520), (5256, 15530), (5840, 13977), (6212, 13140), (6570, 12424), (7765, 10512), (8760, 9318)]