20476120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:393

約数の個数: 96

約数和(自身を含む): 55486080

約数和(自身を除く): 35009960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 49, 56, 62, 70, 98, 124, 140, 155, 196, 217, 245, 248, 280, 310, 337, 392, 434, 490, 620, 674, 868, 980, 1085, 1240, 1348, 1519, 1685, 1736, 1960, 2170, 2359, 2696, 3038, 3370, 4340, 4718, 6076, 6740, 7595, 8680, 9436, 10447, 11795, 12152, 13480, 15190, 16513, 18872, 20894, 23590, 30380, 33026, 41788, 47180, 52235, 60760, 66052, 73129, 82565, 83576, 94360, 104470, 132104, 146258, 165130, 208940, 292516, 330260, 365645, 417880, 511903, 585032, 660520, 731290, 1023806, 1462580, 2047612, 2559515, 2925160, 4095224, 5119030, 10238060, 20476120]

約数ペア:

[(1, 20476120), (2, 10238060), (4, 5119030), (5, 4095224), (7, 2925160), (8, 2559515), (10, 2047612), (14, 1462580), (20, 1023806), (28, 731290), (31, 660520), (35, 585032), (40, 511903), (49, 417880), (56, 365645), (62, 330260), (70, 292516), (98, 208940), (124, 165130), (140, 146258), (155, 132104), (196, 104470), (217, 94360), (245, 83576), (248, 82565), (280, 73129), (310, 66052), (337, 60760), (392, 52235), (434, 47180), (490, 41788), (620, 33026), (674, 30380), (868, 23590), (980, 20894), (1085, 18872), (1240, 16513), (1348, 15190), (1519, 13480), (1685, 12152), (1736, 11795), (1960, 10447), (2170, 9436), (2359, 8680), (2696, 7595), (3038, 6740), (3370, 6076), (4340, 4718)]