20178370940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{209189}}^1$

素因数の和:209271

約数の個数: 96

約数和(自身を含む): 53137607040

約数和(自身を除く): 32959236100

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 53, 65, 70, 91, 106, 130, 140, 182, 212, 260, 265, 364, 371, 455, 530, 689, 742, 910, 1060, 1378, 1484, 1820, 1855, 2756, 3445, 3710, 4823, 6890, 7420, 9646, 13780, 19292, 24115, 48230, 96460, 209189, 418378, 836756, 1045945, 1464323, 2091890, 2719457, 2928646, 4183780, 5438914, 5857292, 7321615, 10877828, 11087017, 13597285, 14643230, 19036199, 22174034, 27194570, 29286460, 38072398, 44348068, 54389140, 55435085, 76144796, 77609119, 95180995, 110870170, 144131221, 155218238, 190361990, 221740340, 288262442, 310436476, 380723980, 388045595, 576524884, 720656105, 776091190, 1008918547, 1441312210, 1552182380, 2017837094, 2882624420, 4035674188, 5044592735, 10089185470, 20178370940]

約数ペア:

[(1, 20178370940), (2, 10089185470), (4, 5044592735), (5, 4035674188), (7, 2882624420), (10, 2017837094), (13, 1552182380), (14, 1441312210), (20, 1008918547), (26, 776091190), (28, 720656105), (35, 576524884), (52, 388045595), (53, 380723980), (65, 310436476), (70, 288262442), (91, 221740340), (106, 190361990), (130, 155218238), (140, 144131221), (182, 110870170), (212, 95180995), (260, 77609119), (265, 76144796), (364, 55435085), (371, 54389140), (455, 44348068), (530, 38072398), (689, 29286460), (742, 27194570), (910, 22174034), (1060, 19036199), (1378, 14643230), (1484, 13597285), (1820, 11087017), (1855, 10877828), (2756, 7321615), (3445, 5857292), (3710, 5438914), (4823, 4183780), (6890, 2928646), (7420, 2719457), (9646, 2091890), (13780, 1464323), (19292, 1045945), (24115, 836756), (48230, 418378), (96460, 209189)]