397323280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{1061}}^1$

素因数の和:1256

約数の個数: 80

約数和(自身を含む): 960795648

約数和(自身を除く): 563472368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 151, 155, 248, 302, 310, 496, 604, 620, 755, 1061, 1208, 1240, 1510, 2122, 2416, 2480, 3020, 4244, 4681, 5305, 6040, 8488, 9362, 10610, 12080, 16976, 18724, 21220, 23405, 32891, 37448, 42440, 46810, 65782, 74896, 84880, 93620, 131564, 160211, 164455, 187240, 263128, 320422, 328910, 374480, 526256, 640844, 657820, 801055, 1281688, 1315640, 1602110, 2563376, 2631280, 3204220, 4966541, 6408440, 9933082, 12816880, 19866164, 24832705, 39732328, 49665410, 79464656, 99330820, 198661640, 397323280]

約数ペア:

[(1, 397323280), (2, 198661640), (4, 99330820), (5, 79464656), (8, 49665410), (10, 39732328), (16, 24832705), (20, 19866164), (31, 12816880), (40, 9933082), (62, 6408440), (80, 4966541), (124, 3204220), (151, 2631280), (155, 2563376), (248, 1602110), (302, 1315640), (310, 1281688), (496, 801055), (604, 657820), (620, 640844), (755, 526256), (1061, 374480), (1208, 328910), (1240, 320422), (1510, 263128), (2122, 187240), (2416, 164455), (2480, 160211), (3020, 131564), (4244, 93620), (4681, 84880), (5305, 74896), (6040, 65782), (8488, 46810), (9362, 42440), (10610, 37448), (12080, 32891), (16976, 23405), (18724, 21220)]