18735568

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:379

約数の個数: 40

約数和(自身を含む): 37497600

約数和(自身を除く): 18762032

約数列:

[1, 2, 4, 8, 16, 59, 89, 118, 178, 223, 236, 356, 446, 472, 712, 892, 944, 1424, 1784, 3568, 5251, 10502, 13157, 19847, 21004, 26314, 39694, 42008, 52628, 79388, 84016, 105256, 158776, 210512, 317552, 1170973, 2341946, 4683892, 9367784, 18735568]

約数ペア:

[(1, 18735568), (2, 9367784), (4, 4683892), (8, 2341946), (16, 1170973), (59, 317552), (89, 210512), (118, 158776), (178, 105256), (223, 84016), (236, 79388), (356, 52628), (446, 42008), (472, 39694), (712, 26314), (892, 21004), (944, 19847), (1424, 13157), (1784, 10502), (3568, 5251)]