20687290680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24627727}}^1$

素因数の和:24627748

約数の個数: 64

約数和(自身を含む): 70927856640

約数和(自身を除く): 50240565960

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, 24627727, 49255454, 73883181, 98510908, 123138635, 147766362, 172394089, 197021816, 246277270, 295532724, 344788178, 369415905, 492554540, 517182267, 591065448, 689576356, 738831810, 861970445, 985109080, 1034364534, 1379152712, 1477663620, 1723940890, 2068729068, 2585911335, 2955327240, 3447881780, 4137458136, 5171822670, 6895763560, 10343645340, 20687290680]

約数ペア:

[(1, 20687290680), (2, 10343645340), (3, 6895763560), (4, 5171822670), (5, 4137458136), (6, 3447881780), (7, 2955327240), (8, 2585911335), (10, 2068729068), (12, 1723940890), (14, 1477663620), (15, 1379152712), (20, 1034364534), (21, 985109080), (24, 861970445), (28, 738831810), (30, 689576356), (35, 591065448), (40, 517182267), (42, 492554540), (56, 369415905), (60, 344788178), (70, 295532724), (84, 246277270), (105, 197021816), (120, 172394089), (140, 147766362), (168, 123138635), (210, 98510908), (280, 73883181), (420, 49255454), (840, 24627727)]