18761540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7883}}^1$

素因数の和:7916

約数の個数: 48

約数和(自身を含む): 47682432

約数和(自身を除く): 28920892

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 7883, 15766, 31532, 39415, 55181, 78830, 110362, 134011, 157660, 220724, 268022, 275905, 536044, 551810, 670055, 938077, 1103620, 1340110, 1876154, 2680220, 3752308, 4690385, 9380770, 18761540]

約数ペア:

[(1, 18761540), (2, 9380770), (4, 4690385), (5, 3752308), (7, 2680220), (10, 1876154), (14, 1340110), (17, 1103620), (20, 938077), (28, 670055), (34, 551810), (35, 536044), (68, 275905), (70, 268022), (85, 220724), (119, 157660), (140, 134011), (170, 110362), (238, 78830), (340, 55181), (476, 39415), (595, 31532), (1190, 15766), (2380, 7883)]