25312420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1123}}^1$

素因数の和:1169

約数の個数: 72

約数和(自身を含む): 64580544

約数和(自身を除く): 39268124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1123, 1127, 1610, 2246, 2254, 3220, 4492, 4508, 5615, 5635, 7861, 11230, 11270, 15722, 22460, 22540, 25829, 31444, 39305, 51658, 55027, 78610, 103316, 110054, 129145, 157220, 180803, 220108, 258290, 275135, 361606, 516580, 550270, 723212, 904015, 1100540, 1265621, 1808030, 2531242, 3616060, 5062484, 6328105, 12656210, 25312420]

約数ペア:

[(1, 25312420), (2, 12656210), (4, 6328105), (5, 5062484), (7, 3616060), (10, 2531242), (14, 1808030), (20, 1265621), (23, 1100540), (28, 904015), (35, 723212), (46, 550270), (49, 516580), (70, 361606), (92, 275135), (98, 258290), (115, 220108), (140, 180803), (161, 157220), (196, 129145), (230, 110054), (245, 103316), (322, 78610), (460, 55027), (490, 51658), (644, 39305), (805, 31444), (980, 25829), (1123, 22540), (1127, 22460), (1610, 15722), (2246, 11270), (2254, 11230), (3220, 7861), (4492, 5635), (4508, 5615)]