20197240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1361}}^1$

素因数の和:1432

約数の個数: 64

約数和(自身を含む): 52954560

約数和(自身を除く): 32757320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1361, 1484, 1855, 2120, 2722, 2968, 3710, 5444, 6805, 7420, 9527, 10888, 13610, 14840, 19054, 27220, 38108, 47635, 54440, 72133, 76216, 95270, 144266, 190540, 288532, 360665, 381080, 504931, 577064, 721330, 1009862, 1442660, 2019724, 2524655, 2885320, 4039448, 5049310, 10098620, 20197240]

約数ペア:

[(1, 20197240), (2, 10098620), (4, 5049310), (5, 4039448), (7, 2885320), (8, 2524655), (10, 2019724), (14, 1442660), (20, 1009862), (28, 721330), (35, 577064), (40, 504931), (53, 381080), (56, 360665), (70, 288532), (106, 190540), (140, 144266), (212, 95270), (265, 76216), (280, 72133), (371, 54440), (424, 47635), (530, 38108), (742, 27220), (1060, 19054), (1361, 14840), (1484, 13610), (1855, 10888), (2120, 9527), (2722, 7420), (2968, 6805), (3710, 5444)]