28141995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 55148544

約数和(自身を除く): 27006549

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 43, 69, 105, 115, 129, 161, 215, 271, 301, 345, 483, 645, 805, 813, 903, 989, 1355, 1505, 1897, 2415, 2967, 4065, 4515, 4945, 5691, 6233, 6923, 9485, 11653, 14835, 18699, 20769, 28455, 31165, 34615, 34959, 43631, 58265, 81571, 93495, 103845, 130893, 174795, 218155, 244713, 268019, 407855, 654465, 804057, 1223565, 1340095, 1876133, 4020285, 5628399, 9380665, 28141995]

約数ペア:

[(1, 28141995), (3, 9380665), (5, 5628399), (7, 4020285), (15, 1876133), (21, 1340095), (23, 1223565), (35, 804057), (43, 654465), (69, 407855), (105, 268019), (115, 244713), (129, 218155), (161, 174795), (215, 130893), (271, 103845), (301, 93495), (345, 81571), (483, 58265), (645, 43631), (805, 34959), (813, 34615), (903, 31165), (989, 28455), (1355, 20769), (1505, 18699), (1897, 14835), (2415, 11653), (2967, 9485), (4065, 6923), (4515, 6233), (4945, 5691)]