19979902912

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{138319}}^1$

素因数の和:138429

約数の個数: 56

約数和(自身を含む): 41387003840

約数和(自身を除く): 21407100928

約数列:

[1, 2, 4, 8, 16, 32, 37, 61, 64, 74, 122, 148, 244, 296, 488, 592, 976, 1184, 1952, 2257, 2368, 3904, 4514, 9028, 18056, 36112, 72224, 138319, 144448, 276638, 553276, 1106552, 2213104, 4426208, 5117803, 8437459, 8852416, 10235606, 16874918, 20471212, 33749836, 40942424, 67499672, 81884848, 134999344, 163769696, 269998688, 312185983, 327539392, 539997376, 624371966, 1248743932, 2497487864, 4994975728, 9989951456, 19979902912]

約数ペア:

[(1, 19979902912), (2, 9989951456), (4, 4994975728), (8, 2497487864), (16, 1248743932), (32, 624371966), (37, 539997376), (61, 327539392), (64, 312185983), (74, 269998688), (122, 163769696), (148, 134999344), (244, 81884848), (296, 67499672), (488, 40942424), (592, 33749836), (976, 20471212), (1184, 16874918), (1952, 10235606), (2257, 8852416), (2368, 8437459), (3904, 5117803), (4514, 4426208), (9028, 2213104), (18056, 1106552), (36112, 553276), (72224, 276638), (138319, 144448)]