201439720

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{18583}}^1$

素因数の和:18865

約数の個数: 32

約数和(自身を含む): 454936320

約数和(自身を除く): 253496600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 18583, 37166, 74332, 92915, 148664, 185830, 371660, 743320, 5035993, 10071986, 20143972, 25179965, 40287944, 50359930, 100719860, 201439720]

約数ペア:

[(1, 201439720), (2, 100719860), (4, 50359930), (5, 40287944), (8, 25179965), (10, 20143972), (20, 10071986), (40, 5035993), (271, 743320), (542, 371660), (1084, 185830), (1355, 148664), (2168, 92915), (2710, 74332), (5420, 37166), (10840, 18583)]