19995120

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9257}}^1$

素因数の和:9279

約数の個数: 80

約数和(自身を含む): 68879520

約数和(自身を除く): 48884400

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, 9257, 18514, 27771, 37028, 46285, 55542, 74056, 83313, 92570, 111084, 138855, 148112, 166626, 185140, 222168, 249939, 277710, 333252, 370280, 416565, 444336, 499878, 555420, 666504, 740560, 833130, 999756, 1110840, 1249695, 1333008, 1666260, 1999512, 2221680, 2499390, 3332520, 3999024, 4998780, 6665040, 9997560, 19995120]

約数ペア:

[(1, 19995120), (2, 9997560), (3, 6665040), (4, 4998780), (5, 3999024), (6, 3332520), (8, 2499390), (9, 2221680), (10, 1999512), (12, 1666260), (15, 1333008), (16, 1249695), (18, 1110840), (20, 999756), (24, 833130), (27, 740560), (30, 666504), (36, 555420), (40, 499878), (45, 444336), (48, 416565), (54, 370280), (60, 333252), (72, 277710), (80, 249939), (90, 222168), (108, 185140), (120, 166626), (135, 148112), (144, 138855), (180, 111084), (216, 92570), (240, 83313), (270, 74056), (360, 55542), (432, 46285), (540, 37028), (720, 27771), (1080, 18514), (2160, 9257)]