21541680

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9973}}^1$

素因数の和:9995

約数の個数: 80

約数和(自身を含む): 74206560

約数和(自身を除く): 52664880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9973, 19946, 29919, 39892, 49865, 59838, 79784, 89757, 99730, 119676, 149595, 159568, 179514, 199460, 239352, 269271, 299190, 359028, 398920, 448785, 478704, 538542, 598380, 718056, 797840, 897570, 1077084, 1196760, 1346355, 1436112, 1795140, 2154168, 2393520, 2692710, 3590280, 4308336, 5385420, 7180560, 10770840, 21541680]

約数ペア:

[(1, 21541680), (2, 10770840), (3, 7180560), (4, 5385420), (5, 4308336), (6, 3590280), (8, 2692710), (9, 2393520), (10, 2154168), (12, 1795140), (15, 1436112), (16, 1346355), (18, 1196760), (20, 1077084), (24, 897570), (27, 797840), (30, 718056), (36, 598380), (40, 538542), (45, 478704), (48, 448785), (54, 398920), (60, 359028), (72, 299190), (80, 269271), (90, 239352), (108, 199460), (120, 179514), (135, 159568), (144, 149595), (180, 119676), (216, 99730), (240, 89757), (270, 79784), (360, 59838), (432, 49865), (540, 39892), (720, 29919), (1080, 19946), (2160, 9973)]