138990208

素因数分解:

$2^7\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2543}}^1$

素因数の和:2625

約数の個数: 64

約数和(自身を含む): 321765120

約数和(自身を除く): 182774912

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 224, 244, 427, 448, 488, 854, 896, 976, 1708, 1952, 2543, 3416, 3904, 5086, 6832, 7808, 10172, 13664, 17801, 20344, 27328, 35602, 40688, 54656, 71204, 81376, 142408, 155123, 162752, 284816, 310246, 325504, 569632, 620492, 1085861, 1139264, 1240984, 2171722, 2278528, 2481968, 4343444, 4963936, 8686888, 9927872, 17373776, 19855744, 34747552, 69495104, 138990208]

約数ペア:

[(1, 138990208), (2, 69495104), (4, 34747552), (7, 19855744), (8, 17373776), (14, 9927872), (16, 8686888), (28, 4963936), (32, 4343444), (56, 2481968), (61, 2278528), (64, 2171722), (112, 1240984), (122, 1139264), (128, 1085861), (224, 620492), (244, 569632), (427, 325504), (448, 310246), (488, 284816), (854, 162752), (896, 155123), (976, 142408), (1708, 81376), (1952, 71204), (2543, 54656), (3416, 40688), (3904, 35602), (5086, 27328), (6832, 20344), (7808, 17801), (10172, 13664)]