20807988676

素因数分解:

$2^2\times {\mathrm{197}}^2\times {\mathrm{311}}^1\times {\mathrm{431}}^1$

素因数の和:1140

約数の個数: 36

約数和(自身を含む): 36802636416

約数和(自身を除く): 15994647740

約数列:

[1, 2, 4, 197, 311, 394, 431, 622, 788, 862, 1244, 1724, 38809, 61267, 77618, 84907, 122534, 134041, 155236, 169814, 245068, 268082, 339628, 536164, 12069599, 16726679, 24139198, 26406077, 33453358, 48278396, 52812154, 66906716, 105624308, 5201997169, 10403994338, 20807988676]

約数ペア:

[(1, 20807988676), (2, 10403994338), (4, 5201997169), (197, 105624308), (311, 66906716), (394, 52812154), (431, 48278396), (622, 33453358), (788, 26406077), (862, 24139198), (1244, 16726679), (1724, 12069599), (38809, 536164), (61267, 339628), (77618, 268082), (84907, 245068), (122534, 169814), (134041, 155236)]