21204720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9817}}^1$

素因数の和:9839

約数の個数: 80

約数和(自身を含む): 73045920

約数和(自身を除く): 51841200

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, 9817, 19634, 29451, 39268, 49085, 58902, 78536, 88353, 98170, 117804, 147255, 157072, 176706, 196340, 235608, 265059, 294510, 353412, 392680, 441765, 471216, 530118, 589020, 706824, 785360, 883530, 1060236, 1178040, 1325295, 1413648, 1767060, 2120472, 2356080, 2650590, 3534120, 4240944, 5301180, 7068240, 10602360, 21204720]

約数ペア:

[(1, 21204720), (2, 10602360), (3, 7068240), (4, 5301180), (5, 4240944), (6, 3534120), (8, 2650590), (9, 2356080), (10, 2120472), (12, 1767060), (15, 1413648), (16, 1325295), (18, 1178040), (20, 1060236), (24, 883530), (27, 785360), (30, 706824), (36, 589020), (40, 530118), (45, 471216), (48, 441765), (54, 392680), (60, 353412), (72, 294510), (80, 265059), (90, 235608), (108, 196340), (120, 176706), (135, 157072), (144, 147255), (180, 117804), (216, 98170), (240, 88353), (270, 78536), (360, 58902), (432, 49085), (540, 39268), (720, 29451), (1080, 19634), (2160, 9817)]