209770680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{249727}}^1$

素因数の和:249748

約数の個数: 64

約数和(自身を含む): 719216640

約数和(自身を除く): 509445960

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, 249727, 499454, 749181, 998908, 1248635, 1498362, 1748089, 1997816, 2497270, 2996724, 3496178, 3745905, 4994540, 5244267, 5993448, 6992356, 7491810, 8740445, 9989080, 10488534, 13984712, 14983620, 17480890, 20977068, 26221335, 29967240, 34961780, 41954136, 52442670, 69923560, 104885340, 209770680]

約数ペア:

[(1, 209770680), (2, 104885340), (3, 69923560), (4, 52442670), (5, 41954136), (6, 34961780), (7, 29967240), (8, 26221335), (10, 20977068), (12, 17480890), (14, 14983620), (15, 13984712), (20, 10488534), (21, 9989080), (24, 8740445), (28, 7491810), (30, 6992356), (35, 5993448), (40, 5244267), (42, 4994540), (56, 3745905), (60, 3496178), (70, 2996724), (84, 2497270), (105, 1997816), (120, 1748089), (140, 1498362), (168, 1248635), (210, 998908), (280, 749181), (420, 499454), (840, 249727)]