20905089240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24887011}}^1$

素因数の和:24887032

約数の個数: 64

約数和(自身を含む): 71674594560

約数和(自身を除く): 50769505320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24887011, 49774022, 74661033, 99548044, 124435055, 149322066, 174209077, 199096088, 248870110, 298644132, 348418154, 373305165, 497740220, 522627231, 597288264, 696836308, 746610330, 871045385, 995480440, 1045254462, 1393672616, 1493220660, 1742090770, 2090508924, 2613136155, 2986441320, 3484181540, 4181017848, 5226272310, 6968363080, 10452544620, 20905089240]

約数ペア:

[(1, 20905089240), (2, 10452544620), (3, 6968363080), (4, 5226272310), (5, 4181017848), (6, 3484181540), (7, 2986441320), (8, 2613136155), (10, 2090508924), (12, 1742090770), (14, 1493220660), (15, 1393672616), (20, 1045254462), (21, 995480440), (24, 871045385), (28, 746610330), (30, 696836308), (35, 597288264), (40, 522627231), (42, 497740220), (56, 373305165), (60, 348418154), (70, 298644132), (84, 248870110), (105, 199096088), (120, 174209077), (140, 149322066), (168, 124435055), (210, 99548044), (280, 74661033), (420, 49774022), (840, 24887011)]