428739220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{461}}^1$

素因数の和:570

約数の個数: 144

約数和(自身を含む): 1145845008

約数和(自身を除く): 717105788

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 73, 91, 98, 130, 140, 146, 182, 196, 245, 260, 292, 364, 365, 455, 461, 490, 511, 637, 730, 910, 922, 949, 980, 1022, 1274, 1460, 1820, 1844, 1898, 2044, 2305, 2548, 2555, 3185, 3227, 3577, 3796, 4610, 4745, 5110, 5993, 6370, 6454, 6643, 7154, 9220, 9490, 10220, 11986, 12740, 12908, 13286, 14308, 16135, 17885, 18980, 22589, 23972, 26572, 29965, 32270, 33215, 33653, 35770, 41951, 45178, 46501, 59930, 64540, 66430, 67306, 71540, 83902, 90356, 93002, 112945, 119860, 132860, 134612, 167804, 168265, 186004, 209755, 225890, 232505, 235571, 293657, 336530, 419510, 437489, 451780, 465010, 471142, 587314, 673060, 839020, 874978, 930020, 942284, 1174628, 1177855, 1468285, 1648997, 1749956, 2187445, 2355710, 2936570, 3062423, 3297994, 4374890, 4711420, 5873140, 6124846, 6595988, 8244985, 8749780, 12249692, 15312115, 16489970, 21436961, 30624230, 32979940, 42873922, 61248460, 85747844, 107184805, 214369610, 428739220]

約数ペア:

[(1, 428739220), (2, 214369610), (4, 107184805), (5, 85747844), (7, 61248460), (10, 42873922), (13, 32979940), (14, 30624230), (20, 21436961), (26, 16489970), (28, 15312115), (35, 12249692), (49, 8749780), (52, 8244985), (65, 6595988), (70, 6124846), (73, 5873140), (91, 4711420), (98, 4374890), (130, 3297994), (140, 3062423), (146, 2936570), (182, 2355710), (196, 2187445), (245, 1749956), (260, 1648997), (292, 1468285), (364, 1177855), (365, 1174628), (455, 942284), (461, 930020), (490, 874978), (511, 839020), (637, 673060), (730, 587314), (910, 471142), (922, 465010), (949, 451780), (980, 437489), (1022, 419510), (1274, 336530), (1460, 293657), (1820, 235571), (1844, 232505), (1898, 225890), (2044, 209755), (2305, 186004), (2548, 168265), (2555, 167804), (3185, 134612), (3227, 132860), (3577, 119860), (3796, 112945), (4610, 93002), (4745, 90356), (5110, 83902), (5993, 71540), (6370, 67306), (6454, 66430), (6643, 64540), (7154, 59930), (9220, 46501), (9490, 45178), (10220, 41951), (11986, 35770), (12740, 33653), (12908, 33215), (13286, 32270), (14308, 29965), (16135, 26572), (17885, 23972), (18980, 22589)]