221352992

素因数分解:

$2^5\times 7^4\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:148

約数の個数: 120

約数和(自身を含む): 527977296

約数和(自身を除く): 306624304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 49, 56, 67, 86, 98, 112, 134, 172, 196, 224, 268, 301, 343, 344, 392, 469, 536, 602, 686, 688, 784, 938, 1072, 1204, 1372, 1376, 1568, 1876, 2107, 2144, 2401, 2408, 2744, 2881, 3283, 3752, 4214, 4802, 4816, 5488, 5762, 6566, 7504, 8428, 9604, 9632, 10976, 11524, 13132, 14749, 15008, 16856, 19208, 20167, 22981, 23048, 26264, 29498, 33712, 38416, 40334, 45962, 46096, 52528, 58996, 67424, 76832, 80668, 91924, 92192, 103243, 105056, 117992, 141169, 160867, 161336, 183848, 206486, 235984, 282338, 321734, 322672, 367696, 412972, 471968, 564676, 643468, 645344, 735392, 825944, 988183, 1129352, 1286936, 1651888, 1976366, 2258704, 2573872, 3303776, 3952732, 4517408, 5147744, 6917281, 7905464, 13834562, 15810928, 27669124, 31621856, 55338248, 110676496, 221352992]

約数ペア:

[(1, 221352992), (2, 110676496), (4, 55338248), (7, 31621856), (8, 27669124), (14, 15810928), (16, 13834562), (28, 7905464), (32, 6917281), (43, 5147744), (49, 4517408), (56, 3952732), (67, 3303776), (86, 2573872), (98, 2258704), (112, 1976366), (134, 1651888), (172, 1286936), (196, 1129352), (224, 988183), (268, 825944), (301, 735392), (343, 645344), (344, 643468), (392, 564676), (469, 471968), (536, 412972), (602, 367696), (686, 322672), (688, 321734), (784, 282338), (938, 235984), (1072, 206486), (1204, 183848), (1372, 161336), (1376, 160867), (1568, 141169), (1876, 117992), (2107, 105056), (2144, 103243), (2401, 92192), (2408, 91924), (2744, 80668), (2881, 76832), (3283, 67424), (3752, 58996), (4214, 52528), (4802, 46096), (4816, 45962), (5488, 40334), (5762, 38416), (6566, 33712), (7504, 29498), (8428, 26264), (9604, 23048), (9632, 22981), (10976, 20167), (11524, 19208), (13132, 16856), (14749, 15008)]