81809640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{283}}^1$

素因数の和:384

約数の個数: 192

約数和(自身を含む): 295064640

約数和(自身を除く): 213255000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 73, 88, 90, 99, 110, 120, 132, 146, 165, 180, 198, 219, 220, 264, 283, 292, 330, 360, 365, 396, 438, 440, 495, 566, 584, 657, 660, 730, 792, 803, 849, 876, 990, 1095, 1132, 1314, 1320, 1415, 1460, 1606, 1698, 1752, 1980, 2190, 2264, 2409, 2547, 2628, 2830, 2920, 3113, 3212, 3285, 3396, 3960, 4015, 4245, 4380, 4818, 5094, 5256, 5660, 6226, 6424, 6570, 6792, 7227, 8030, 8490, 8760, 9339, 9636, 10188, 11320, 12045, 12452, 12735, 13140, 14454, 15565, 16060, 16980, 18678, 19272, 20376, 20659, 24090, 24904, 25470, 26280, 28017, 28908, 31130, 32120, 33960, 36135, 37356, 41318, 46695, 48180, 50940, 56034, 57816, 61977, 62260, 72270, 74712, 82636, 93390, 96360, 101880, 103295, 112068, 123954, 124520, 140085, 144540, 165272, 185931, 186780, 206590, 224136, 227249, 247908, 280170, 289080, 309885, 371862, 373560, 413180, 454498, 495816, 560340, 619770, 681747, 743724, 826360, 908996, 929655, 1120680, 1136245, 1239540, 1363494, 1487448, 1817992, 1859310, 2045241, 2272490, 2479080, 2726988, 3408735, 3718620, 4090482, 4544980, 5453976, 6817470, 7437240, 8180964, 9089960, 10226205, 13634940, 16361928, 20452410, 27269880, 40904820, 81809640]

約数ペア:

[(1, 81809640), (2, 40904820), (3, 27269880), (4, 20452410), (5, 16361928), (6, 13634940), (8, 10226205), (9, 9089960), (10, 8180964), (11, 7437240), (12, 6817470), (15, 5453976), (18, 4544980), (20, 4090482), (22, 3718620), (24, 3408735), (30, 2726988), (33, 2479080), (36, 2272490), (40, 2045241), (44, 1859310), (45, 1817992), (55, 1487448), (60, 1363494), (66, 1239540), (72, 1136245), (73, 1120680), (88, 929655), (90, 908996), (99, 826360), (110, 743724), (120, 681747), (132, 619770), (146, 560340), (165, 495816), (180, 454498), (198, 413180), (219, 373560), (220, 371862), (264, 309885), (283, 289080), (292, 280170), (330, 247908), (360, 227249), (365, 224136), (396, 206590), (438, 186780), (440, 185931), (495, 165272), (566, 144540), (584, 140085), (657, 124520), (660, 123954), (730, 112068), (792, 103295), (803, 101880), (849, 96360), (876, 93390), (990, 82636), (1095, 74712), (1132, 72270), (1314, 62260), (1320, 61977), (1415, 57816), (1460, 56034), (1606, 50940), (1698, 48180), (1752, 46695), (1980, 41318), (2190, 37356), (2264, 36135), (2409, 33960), (2547, 32120), (2628, 31130), (2830, 28908), (2920, 28017), (3113, 26280), (3212, 25470), (3285, 24904), (3396, 24090), (3960, 20659), (4015, 20376), (4245, 19272), (4380, 18678), (4818, 16980), (5094, 16060), (5256, 15565), (5660, 14454), (6226, 13140), (6424, 12735), (6570, 12452), (6792, 12045), (7227, 11320), (8030, 10188), (8490, 9636), (8760, 9339)]