20184540880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{563}}^1\times {\mathrm{877}}^1$

素因数の和:1533

約数の個数: 160

約数和(自身を含む): 54526581504

約数和(自身を除く): 34342040624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 563, 584, 730, 877, 1022, 1126, 1168, 1460, 1754, 2044, 2252, 2555, 2815, 2920, 3508, 3941, 4088, 4385, 4504, 5110, 5630, 5840, 6139, 7016, 7882, 8176, 8770, 9008, 10220, 11260, 12278, 14032, 15764, 17540, 19705, 20440, 22520, 24556, 30695, 31528, 35080, 39410, 40880, 41099, 45040, 49112, 61390, 63056, 64021, 70160, 78820, 82198, 98224, 122780, 128042, 157640, 164396, 205495, 245560, 256084, 287693, 315280, 320105, 328792, 410990, 448147, 491120, 493751, 512168, 575386, 640210, 657584, 821980, 896294, 987502, 1024336, 1150772, 1280420, 1438465, 1643960, 1792588, 1975004, 2240735, 2301544, 2468755, 2560840, 2876930, 3287920, 3456257, 3585176, 3950008, 4481470, 4603088, 4937510, 5121680, 5753860, 6912514, 7170352, 7900016, 8962940, 9875020, 11507720, 13825028, 17281285, 17925880, 19750040, 23015440, 27650056, 34562570, 35851760, 36043823, 39500080, 55300112, 69125140, 72087646, 138250280, 144175292, 180219115, 252306761, 276500560, 288350584, 360438230, 504613522, 576701168, 720876460, 1009227044, 1261533805, 1441752920, 2018454088, 2523067610, 2883505840, 4036908176, 5046135220, 10092270440, 20184540880]

約数ペア:

[(1, 20184540880), (2, 10092270440), (4, 5046135220), (5, 4036908176), (7, 2883505840), (8, 2523067610), (10, 2018454088), (14, 1441752920), (16, 1261533805), (20, 1009227044), (28, 720876460), (35, 576701168), (40, 504613522), (56, 360438230), (70, 288350584), (73, 276500560), (80, 252306761), (112, 180219115), (140, 144175292), (146, 138250280), (280, 72087646), (292, 69125140), (365, 55300112), (511, 39500080), (560, 36043823), (563, 35851760), (584, 34562570), (730, 27650056), (877, 23015440), (1022, 19750040), (1126, 17925880), (1168, 17281285), (1460, 13825028), (1754, 11507720), (2044, 9875020), (2252, 8962940), (2555, 7900016), (2815, 7170352), (2920, 6912514), (3508, 5753860), (3941, 5121680), (4088, 4937510), (4385, 4603088), (4504, 4481470), (5110, 3950008), (5630, 3585176), (5840, 3456257), (6139, 3287920), (7016, 2876930), (7882, 2560840), (8176, 2468755), (8770, 2301544), (9008, 2240735), (10220, 1975004), (11260, 1792588), (12278, 1643960), (14032, 1438465), (15764, 1280420), (17540, 1150772), (19705, 1024336), (20440, 987502), (22520, 896294), (24556, 821980), (30695, 657584), (31528, 640210), (35080, 575386), (39410, 512168), (40880, 493751), (41099, 491120), (45040, 448147), (49112, 410990), (61390, 328792), (63056, 320105), (64021, 315280), (70160, 287693), (78820, 256084), (82198, 245560), (98224, 205495), (122780, 164396), (128042, 157640)]