18571490

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 39299904

約数和(自身を除く): 20728414

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 151, 245, 251, 302, 490, 502, 755, 1057, 1255, 1510, 1757, 2114, 2510, 3514, 5285, 7399, 8785, 10570, 12299, 14798, 17570, 24598, 36995, 37901, 61495, 73990, 75802, 122990, 189505, 265307, 379010, 530614, 1326535, 1857149, 2653070, 3714298, 9285745, 18571490]

約数ペア:

[(1, 18571490), (2, 9285745), (5, 3714298), (7, 2653070), (10, 1857149), (14, 1326535), (35, 530614), (49, 379010), (70, 265307), (98, 189505), (151, 122990), (245, 75802), (251, 73990), (302, 61495), (490, 37901), (502, 36995), (755, 24598), (1057, 17570), (1255, 14798), (1510, 12299), (1757, 10570), (2114, 8785), (2510, 7399), (3514, 5285)]