220291280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1447}}^1$

素因数の和:1644

約数の個数: 80

約数和(自身を含む): 562356864

約数和(自身を除く): 342065584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 173, 176, 220, 346, 440, 692, 865, 880, 1384, 1447, 1730, 1903, 2768, 2894, 3460, 3806, 5788, 6920, 7235, 7612, 9515, 11576, 13840, 14470, 15224, 15917, 19030, 23152, 28940, 30448, 31834, 38060, 57880, 63668, 76120, 79585, 115760, 127336, 152240, 159170, 250331, 254672, 318340, 500662, 636680, 1001324, 1251655, 1273360, 2002648, 2503310, 2753641, 4005296, 5006620, 5507282, 10013240, 11014564, 13768205, 20026480, 22029128, 27536410, 44058256, 55072820, 110145640, 220291280]

約数ペア:

[(1, 220291280), (2, 110145640), (4, 55072820), (5, 44058256), (8, 27536410), (10, 22029128), (11, 20026480), (16, 13768205), (20, 11014564), (22, 10013240), (40, 5507282), (44, 5006620), (55, 4005296), (80, 2753641), (88, 2503310), (110, 2002648), (173, 1273360), (176, 1251655), (220, 1001324), (346, 636680), (440, 500662), (692, 318340), (865, 254672), (880, 250331), (1384, 159170), (1447, 152240), (1730, 127336), (1903, 115760), (2768, 79585), (2894, 76120), (3460, 63668), (3806, 57880), (5788, 38060), (6920, 31834), (7235, 30448), (7612, 28940), (9515, 23152), (11576, 19030), (13840, 15917), (14470, 15224)]