20838328

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 49863600

約数和(自身を除く): 29025272

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 53, 56, 59, 68, 98, 106, 118, 119, 136, 196, 212, 236, 238, 371, 392, 413, 424, 472, 476, 742, 826, 833, 901, 952, 1003, 1484, 1652, 1666, 1802, 2006, 2597, 2891, 2968, 3127, 3304, 3332, 3604, 4012, 5194, 5782, 6254, 6307, 6664, 7021, 7208, 8024, 10388, 11564, 12508, 12614, 14042, 20776, 21889, 23128, 25016, 25228, 28084, 43778, 44149, 49147, 50456, 53159, 56168, 87556, 88298, 98294, 106318, 153223, 175112, 176596, 196588, 212636, 306446, 353192, 372113, 393176, 425272, 612892, 744226, 1225784, 1488452, 2604791, 2976904, 5209582, 10419164, 20838328]

約数ペア:

[(1, 20838328), (2, 10419164), (4, 5209582), (7, 2976904), (8, 2604791), (14, 1488452), (17, 1225784), (28, 744226), (34, 612892), (49, 425272), (53, 393176), (56, 372113), (59, 353192), (68, 306446), (98, 212636), (106, 196588), (118, 176596), (119, 175112), (136, 153223), (196, 106318), (212, 98294), (236, 88298), (238, 87556), (371, 56168), (392, 53159), (413, 50456), (424, 49147), (472, 44149), (476, 43778), (742, 28084), (826, 25228), (833, 25016), (901, 23128), (952, 21889), (1003, 20776), (1484, 14042), (1652, 12614), (1666, 12508), (1802, 11564), (2006, 10388), (2597, 8024), (2891, 7208), (2968, 7021), (3127, 6664), (3304, 6307), (3332, 6254), (3604, 5782), (4012, 5194)]