17991919504

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{677}}^1\times {\mathrm{1907}}^1$

素因数の和:2672

約数の個数: 80

約数和(自身を含む): 38177431488

約数和(自身を除く): 20185511984

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 677, 871, 1072, 1354, 1742, 1907, 2708, 3484, 3814, 5416, 6968, 7628, 8801, 10832, 13936, 15256, 17602, 24791, 30512, 35204, 45359, 49582, 70408, 90718, 99164, 127769, 140816, 181436, 198328, 255538, 362872, 396656, 511076, 589667, 725744, 1022152, 1179334, 1291039, 1660997, 2044304, 2358668, 2582078, 3321994, 4717336, 5164156, 6643988, 9434672, 10328312, 13287976, 16783507, 20656624, 26575952, 33567014, 67134028, 86499613, 134268056, 172999226, 268536112, 345998452, 691996904, 1124494969, 1383993808, 2248989938, 4497979876, 8995959752, 17991919504]

約数ペア:

[(1, 17991919504), (2, 8995959752), (4, 4497979876), (8, 2248989938), (13, 1383993808), (16, 1124494969), (26, 691996904), (52, 345998452), (67, 268536112), (104, 172999226), (134, 134268056), (208, 86499613), (268, 67134028), (536, 33567014), (677, 26575952), (871, 20656624), (1072, 16783507), (1354, 13287976), (1742, 10328312), (1907, 9434672), (2708, 6643988), (3484, 5164156), (3814, 4717336), (5416, 3321994), (6968, 2582078), (7628, 2358668), (8801, 2044304), (10832, 1660997), (13936, 1291039), (15256, 1179334), (17602, 1022152), (24791, 725744), (30512, 589667), (35204, 511076), (45359, 396656), (49582, 362872), (70408, 255538), (90718, 198328), (99164, 181436), (127769, 140816)]