221379184

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 120

約数和(自身を含む): 508300800

約数和(自身を除く): 286921616

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 31, 38, 52, 62, 76, 104, 124, 139, 152, 169, 208, 247, 248, 278, 304, 338, 403, 494, 496, 556, 589, 676, 806, 988, 1112, 1178, 1352, 1612, 1807, 1976, 2224, 2356, 2641, 2704, 3211, 3224, 3614, 3952, 4309, 4712, 5239, 5282, 6422, 6448, 7228, 7657, 8618, 9424, 10478, 10564, 12844, 14456, 15314, 17236, 20956, 21128, 23491, 25688, 28912, 30628, 34333, 34472, 41912, 42256, 46982, 51376, 56017, 61256, 68666, 68944, 81871, 83824, 93964, 99541, 112034, 122512, 137332, 163742, 187928, 199082, 224068, 274664, 327484, 375856, 398164, 446329, 448136, 549328, 654968, 728221, 796328, 892658, 896272, 1064323, 1309936, 1456442, 1592656, 1785316, 2128646, 2912884, 3570632, 4257292, 5825768, 7141264, 8514584, 11651536, 13836199, 17029168, 27672398, 55344796, 110689592, 221379184]

約数ペア:

[(1, 221379184), (2, 110689592), (4, 55344796), (8, 27672398), (13, 17029168), (16, 13836199), (19, 11651536), (26, 8514584), (31, 7141264), (38, 5825768), (52, 4257292), (62, 3570632), (76, 2912884), (104, 2128646), (124, 1785316), (139, 1592656), (152, 1456442), (169, 1309936), (208, 1064323), (247, 896272), (248, 892658), (278, 796328), (304, 728221), (338, 654968), (403, 549328), (494, 448136), (496, 446329), (556, 398164), (589, 375856), (676, 327484), (806, 274664), (988, 224068), (1112, 199082), (1178, 187928), (1352, 163742), (1612, 137332), (1807, 122512), (1976, 112034), (2224, 99541), (2356, 93964), (2641, 83824), (2704, 81871), (3211, 68944), (3224, 68666), (3614, 61256), (3952, 56017), (4309, 51376), (4712, 46982), (5239, 42256), (5282, 41912), (6422, 34472), (6448, 34333), (7228, 30628), (7657, 28912), (8618, 25688), (9424, 23491), (10478, 21128), (10564, 20956), (12844, 17236), (14456, 15314)]