18704880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:415

約数の個数: 120

約数和(自身を含む): 63777168

約数和(自身を除く): 45072288

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, 80, 83, 90, 120, 144, 166, 180, 240, 249, 313, 332, 360, 415, 498, 626, 664, 720, 747, 830, 939, 996, 1245, 1252, 1328, 1494, 1565, 1660, 1878, 1992, 2490, 2504, 2817, 2988, 3130, 3320, 3735, 3756, 3984, 4695, 4980, 5008, 5634, 5976, 6260, 6640, 7470, 7512, 9390, 9960, 11268, 11952, 12520, 14085, 14940, 15024, 18780, 19920, 22536, 25040, 25979, 28170, 29880, 37560, 45072, 51958, 56340, 59760, 75120, 77937, 103916, 112680, 129895, 155874, 207832, 225360, 233811, 259790, 311748, 389685, 415664, 467622, 519580, 623496, 779370, 935244, 1039160, 1169055, 1246992, 1558740, 1870488, 2078320, 2338110, 3117480, 3740976, 4676220, 6234960, 9352440, 18704880]

約数ペア:

[(1, 18704880), (2, 9352440), (3, 6234960), (4, 4676220), (5, 3740976), (6, 3117480), (8, 2338110), (9, 2078320), (10, 1870488), (12, 1558740), (15, 1246992), (16, 1169055), (18, 1039160), (20, 935244), (24, 779370), (30, 623496), (36, 519580), (40, 467622), (45, 415664), (48, 389685), (60, 311748), (72, 259790), (80, 233811), (83, 225360), (90, 207832), (120, 155874), (144, 129895), (166, 112680), (180, 103916), (240, 77937), (249, 75120), (313, 59760), (332, 56340), (360, 51958), (415, 45072), (498, 37560), (626, 29880), (664, 28170), (720, 25979), (747, 25040), (830, 22536), (939, 19920), (996, 18780), (1245, 15024), (1252, 14940), (1328, 14085), (1494, 12520), (1565, 11952), (1660, 11268), (1878, 9960), (1992, 9390), (2490, 7512), (2504, 7470), (2817, 6640), (2988, 6260), (3130, 5976), (3320, 5634), (3735, 5008), (3756, 4980), (3984, 4695)]