25810020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{643}}^1$

素因数の和:881

約数の個数: 72

約数和(自身を含む): 78763776

約数和(自身を除く): 52953756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 643, 669, 892, 1115, 1286, 1338, 1929, 2007, 2230, 2572, 2676, 3215, 3345, 3858, 4014, 4460, 5787, 6430, 6690, 7716, 8028, 9645, 10035, 11574, 12860, 13380, 19290, 20070, 23148, 28935, 38580, 40140, 57870, 115740, 143389, 286778, 430167, 573556, 716945, 860334, 1290501, 1433890, 1720668, 2150835, 2581002, 2867780, 4301670, 5162004, 6452505, 8603340, 12905010, 25810020]

約数ペア:

[(1, 25810020), (2, 12905010), (3, 8603340), (4, 6452505), (5, 5162004), (6, 4301670), (9, 2867780), (10, 2581002), (12, 2150835), (15, 1720668), (18, 1433890), (20, 1290501), (30, 860334), (36, 716945), (45, 573556), (60, 430167), (90, 286778), (180, 143389), (223, 115740), (446, 57870), (643, 40140), (669, 38580), (892, 28935), (1115, 23148), (1286, 20070), (1338, 19290), (1929, 13380), (2007, 12860), (2230, 11574), (2572, 10035), (2676, 9645), (3215, 8028), (3345, 7716), (3858, 6690), (4014, 6430), (4460, 5787)]