21079440

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3253}}^1$

素因数の和:3278

約数の個数: 100

約数和(自身を含む): 73234524

約数和(自身を除く): 52155084

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, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 3253, 6480, 6506, 9759, 13012, 16265, 19518, 26024, 29277, 32530, 39036, 48795, 52048, 58554, 65060, 78072, 87831, 97590, 117108, 130120, 146385, 156144, 175662, 195180, 234216, 260240, 263493, 292770, 351324, 390360, 439155, 468432, 526986, 585540, 702648, 780720, 878310, 1053972, 1171080, 1317465, 1405296, 1756620, 2107944, 2342160, 2634930, 3513240, 4215888, 5269860, 7026480, 10539720, 21079440]

約数ペア:

[(1, 21079440), (2, 10539720), (3, 7026480), (4, 5269860), (5, 4215888), (6, 3513240), (8, 2634930), (9, 2342160), (10, 2107944), (12, 1756620), (15, 1405296), (16, 1317465), (18, 1171080), (20, 1053972), (24, 878310), (27, 780720), (30, 702648), (36, 585540), (40, 526986), (45, 468432), (48, 439155), (54, 390360), (60, 351324), (72, 292770), (80, 263493), (81, 260240), (90, 234216), (108, 195180), (120, 175662), (135, 156144), (144, 146385), (162, 130120), (180, 117108), (216, 97590), (240, 87831), (270, 78072), (324, 65060), (360, 58554), (405, 52048), (432, 48795), (540, 39036), (648, 32530), (720, 29277), (810, 26024), (1080, 19518), (1296, 16265), (1620, 13012), (2160, 9759), (3240, 6506), (3253, 6480)]