25022440

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1229}}^1$

素因数の和:1749

約数の個数: 32

約数和(自身を含む): 56457000

約数和(自身を除く): 31434560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 1229, 2036, 2458, 2545, 4072, 4916, 5090, 6145, 9832, 10180, 12290, 20360, 24580, 49160, 625561, 1251122, 2502244, 3127805, 5004488, 6255610, 12511220, 25022440]

約数ペア:

[(1, 25022440), (2, 12511220), (4, 6255610), (5, 5004488), (8, 3127805), (10, 2502244), (20, 1251122), (40, 625561), (509, 49160), (1018, 24580), (1229, 20360), (2036, 12290), (2458, 10180), (2545, 9832), (4072, 6145), (4916, 5090)]