8281980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{313}}^1$

素因数の和:345

約数の個数: 144

約数和(自身を含む): 30068640

約数和(自身を除く): 21786660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 313, 315, 378, 420, 441, 490, 540, 588, 626, 630, 735, 756, 882, 939, 945, 980, 1252, 1260, 1323, 1470, 1565, 1764, 1878, 1890, 2191, 2205, 2646, 2817, 2940, 3130, 3756, 3780, 4382, 4410, 4695, 5292, 5634, 6260, 6573, 6615, 8451, 8764, 8820, 9390, 10955, 11268, 13146, 13230, 14085, 15337, 16902, 18780, 19719, 21910, 26292, 26460, 28170, 30674, 32865, 33804, 39438, 42255, 43820, 46011, 56340, 59157, 61348, 65730, 76685, 78876, 84510, 92022, 98595, 118314, 131460, 138033, 153370, 169020, 184044, 197190, 230055, 236628, 276066, 295785, 306740, 394380, 414099, 460110, 552132, 591570, 690165, 828198, 920220, 1183140, 1380330, 1656396, 2070495, 2760660, 4140990, 8281980]

約数ペア:

[(1, 8281980), (2, 4140990), (3, 2760660), (4, 2070495), (5, 1656396), (6, 1380330), (7, 1183140), (9, 920220), (10, 828198), (12, 690165), (14, 591570), (15, 552132), (18, 460110), (20, 414099), (21, 394380), (27, 306740), (28, 295785), (30, 276066), (35, 236628), (36, 230055), (42, 197190), (45, 184044), (49, 169020), (54, 153370), (60, 138033), (63, 131460), (70, 118314), (84, 98595), (90, 92022), (98, 84510), (105, 78876), (108, 76685), (126, 65730), (135, 61348), (140, 59157), (147, 56340), (180, 46011), (189, 43820), (196, 42255), (210, 39438), (245, 33804), (252, 32865), (270, 30674), (294, 28170), (313, 26460), (315, 26292), (378, 21910), (420, 19719), (441, 18780), (490, 16902), (540, 15337), (588, 14085), (626, 13230), (630, 13146), (735, 11268), (756, 10955), (882, 9390), (939, 8820), (945, 8764), (980, 8451), (1252, 6615), (1260, 6573), (1323, 6260), (1470, 5634), (1565, 5292), (1764, 4695), (1878, 4410), (1890, 4382), (2191, 3780), (2205, 3756), (2646, 3130), (2817, 2940)]