20105638980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47870569}}^1$

素因数の和:47870588

約数の個数: 48

約数和(自身を含む): 64338046080

約数和(自身を除く): 44232407100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47870569, 95741138, 143611707, 191482276, 239352845, 287223414, 335093983, 478705690, 574446828, 670187966, 718058535, 957411380, 1005281949, 1340375932, 1436117070, 1675469915, 2010563898, 2872234140, 3350939830, 4021127796, 5026409745, 6701879660, 10052819490, 20105638980]

約数ペア:

[(1, 20105638980), (2, 10052819490), (3, 6701879660), (4, 5026409745), (5, 4021127796), (6, 3350939830), (7, 2872234140), (10, 2010563898), (12, 1675469915), (14, 1436117070), (15, 1340375932), (20, 1005281949), (21, 957411380), (28, 718058535), (30, 670187966), (35, 574446828), (42, 478705690), (60, 335093983), (70, 287223414), (84, 239352845), (105, 191482276), (140, 143611707), (210, 95741138), (420, 47870569)]