19918440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{18443}}^1$

素因数の和:18463

約数の個数: 64

約数和(自身を含む): 66398400

約数和(自身を除く): 46479960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 18443, 36886, 55329, 73772, 92215, 110658, 147544, 165987, 184430, 221316, 276645, 331974, 368860, 442632, 497961, 553290, 663948, 737720, 829935, 995922, 1106580, 1327896, 1659870, 1991844, 2213160, 2489805, 3319740, 3983688, 4979610, 6639480, 9959220, 19918440]

約数ペア:

[(1, 19918440), (2, 9959220), (3, 6639480), (4, 4979610), (5, 3983688), (6, 3319740), (8, 2489805), (9, 2213160), (10, 1991844), (12, 1659870), (15, 1327896), (18, 1106580), (20, 995922), (24, 829935), (27, 737720), (30, 663948), (36, 553290), (40, 497961), (45, 442632), (54, 368860), (60, 331974), (72, 276645), (90, 221316), (108, 184430), (120, 165987), (135, 147544), (180, 110658), (216, 92215), (270, 73772), (360, 55329), (540, 36886), (1080, 18443)]