19720430

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{479}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 17604370

約数列:

[1, 2, 5, 10, 23, 46, 115, 179, 230, 358, 479, 895, 958, 1790, 2395, 4117, 4790, 8234, 11017, 20585, 22034, 41170, 55085, 85741, 110170, 171482, 428705, 857410, 1972043, 3944086, 9860215, 19720430]

約数ペア:

[(1, 19720430), (2, 9860215), (5, 3944086), (10, 1972043), (23, 857410), (46, 428705), (115, 171482), (179, 110170), (230, 85741), (358, 55085), (479, 41170), (895, 22034), (958, 20585), (1790, 11017), (2395, 8234), (4117, 4790)]