641009984

素因数分解:

$2^6\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{3203}}^1$

素因数の和:3327

約数の個数: 56

約数和(自身を含む): 1318381920

約数和(自身を除く): 677371936

約数列:

[1, 2, 4, 8, 16, 32, 53, 59, 64, 106, 118, 212, 236, 424, 472, 848, 944, 1696, 1888, 3127, 3203, 3392, 3776, 6254, 6406, 12508, 12812, 25016, 25624, 50032, 51248, 100064, 102496, 169759, 188977, 200128, 204992, 339518, 377954, 679036, 755908, 1358072, 1511816, 2716144, 3023632, 5432288, 6047264, 10015781, 10864576, 12094528, 20031562, 40063124, 80126248, 160252496, 320504992, 641009984]

約数ペア:

[(1, 641009984), (2, 320504992), (4, 160252496), (8, 80126248), (16, 40063124), (32, 20031562), (53, 12094528), (59, 10864576), (64, 10015781), (106, 6047264), (118, 5432288), (212, 3023632), (236, 2716144), (424, 1511816), (472, 1358072), (848, 755908), (944, 679036), (1696, 377954), (1888, 339518), (3127, 204992), (3203, 200128), (3392, 188977), (3776, 169759), (6254, 102496), (6406, 100064), (12508, 51248), (12812, 50032), (25016, 25624)]