28720656

素因数分解:

$2^4\times 3^5\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 120

約数和(自身を含む): 85307040

約数和(自身を除く): 56586384

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 81, 83, 89, 108, 144, 162, 166, 178, 216, 243, 249, 267, 324, 332, 356, 432, 486, 498, 534, 648, 664, 712, 747, 801, 972, 996, 1068, 1296, 1328, 1424, 1494, 1602, 1944, 1992, 2136, 2241, 2403, 2988, 3204, 3888, 3984, 4272, 4482, 4806, 5976, 6408, 6723, 7209, 7387, 8964, 9612, 11952, 12816, 13446, 14418, 14774, 17928, 19224, 20169, 21627, 22161, 26892, 28836, 29548, 35856, 38448, 40338, 43254, 44322, 53784, 57672, 59096, 66483, 80676, 86508, 88644, 107568, 115344, 118192, 132966, 161352, 173016, 177288, 199449, 265932, 322704, 346032, 354576, 398898, 531864, 598347, 797796, 1063728, 1196694, 1595592, 1795041, 2393388, 3191184, 3590082, 4786776, 7180164, 9573552, 14360328, 28720656]

約数ペア:

[(1, 28720656), (2, 14360328), (3, 9573552), (4, 7180164), (6, 4786776), (8, 3590082), (9, 3191184), (12, 2393388), (16, 1795041), (18, 1595592), (24, 1196694), (27, 1063728), (36, 797796), (48, 598347), (54, 531864), (72, 398898), (81, 354576), (83, 346032), (89, 322704), (108, 265932), (144, 199449), (162, 177288), (166, 173016), (178, 161352), (216, 132966), (243, 118192), (249, 115344), (267, 107568), (324, 88644), (332, 86508), (356, 80676), (432, 66483), (486, 59096), (498, 57672), (534, 53784), (648, 44322), (664, 43254), (712, 40338), (747, 38448), (801, 35856), (972, 29548), (996, 28836), (1068, 26892), (1296, 22161), (1328, 21627), (1424, 20169), (1494, 19224), (1602, 17928), (1944, 14774), (1992, 14418), (2136, 13446), (2241, 12816), (2403, 11952), (2988, 9612), (3204, 8964), (3888, 7387), (3984, 7209), (4272, 6723), (4482, 6408), (4806, 5976)]