28426788

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:443

約数の個数: 120

約数和(自身を含む): 84950712

約数和(自身を除く): 56523924

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 27, 34, 36, 39, 51, 52, 54, 68, 78, 81, 102, 108, 117, 153, 156, 162, 204, 221, 234, 306, 324, 351, 397, 442, 459, 468, 612, 663, 702, 794, 884, 918, 1053, 1191, 1326, 1377, 1404, 1588, 1836, 1989, 2106, 2382, 2652, 2754, 3573, 3978, 4212, 4764, 5161, 5508, 5967, 6749, 7146, 7956, 10322, 10719, 11934, 13498, 14292, 15483, 17901, 20247, 20644, 21438, 23868, 26996, 30966, 32157, 35802, 40494, 42876, 46449, 60741, 61932, 64314, 71604, 80988, 87737, 92898, 121482, 128628, 139347, 175474, 182223, 185796, 242964, 263211, 278694, 350948, 364446, 418041, 526422, 546669, 557388, 728892, 789633, 836082, 1052844, 1093338, 1579266, 1672164, 2186676, 2368899, 3158532, 4737798, 7106697, 9475596, 14213394, 28426788]

約数ペア:

[(1, 28426788), (2, 14213394), (3, 9475596), (4, 7106697), (6, 4737798), (9, 3158532), (12, 2368899), (13, 2186676), (17, 1672164), (18, 1579266), (26, 1093338), (27, 1052844), (34, 836082), (36, 789633), (39, 728892), (51, 557388), (52, 546669), (54, 526422), (68, 418041), (78, 364446), (81, 350948), (102, 278694), (108, 263211), (117, 242964), (153, 185796), (156, 182223), (162, 175474), (204, 139347), (221, 128628), (234, 121482), (306, 92898), (324, 87737), (351, 80988), (397, 71604), (442, 64314), (459, 61932), (468, 60741), (612, 46449), (663, 42876), (702, 40494), (794, 35802), (884, 32157), (918, 30966), (1053, 26996), (1191, 23868), (1326, 21438), (1377, 20644), (1404, 20247), (1588, 17901), (1836, 15483), (1989, 14292), (2106, 13498), (2382, 11934), (2652, 10719), (2754, 10322), (3573, 7956), (3978, 7146), (4212, 6749), (4764, 5967), (5161, 5508)]