19440240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{81001}}^1$

素因数の和:81017

約数の個数: 40

約数和(自身を含む): 60265488

約数和(自身を除く): 40825248

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 81001, 162002, 243003, 324004, 405005, 486006, 648008, 810010, 972012, 1215015, 1296016, 1620020, 1944024, 2430030, 3240040, 3888048, 4860060, 6480080, 9720120, 19440240]

約数ペア:

[(1, 19440240), (2, 9720120), (3, 6480080), (4, 4860060), (5, 3888048), (6, 3240040), (8, 2430030), (10, 1944024), (12, 1620020), (15, 1296016), (16, 1215015), (20, 972012), (24, 810010), (30, 648008), (40, 486006), (48, 405005), (60, 324004), (80, 243003), (120, 162002), (240, 81001)]